Hello, I wanna upgrade my server to 1.14.3,
So I tried changed almost all plugins, But I can't join the server
because of two plugin,

RFchairs and HolographicDisplays.

I already separated the first one,

But second one bullies me.

Below are my console message.

[19:43:10] [User Authenticator #5/INFO]: UUID of player OngMong is 31db7907-5fc9-4403-9b13-170d2eca0c00 [19:43:10] [Server thread/ERROR]: [HolographicDisplays] Unhandled exception occured in onPacketSending(PacketEvent) for HolographicDisplays java.lang.RuntimeException: Cannot retrieve entity from ID. at com.comphenix.protocol.wrappers.BukkitConverters$9.getSpecific(BukkitConverters.java:648) ~[?:?] at com.comphenix.protocol.wrappers.BukkitConverters$9.getSpecific(BukkitConverters.java:627) ~[?:?] at com.comphenix.protocol.reflect.StructureModifier.readInternal(StructureModifier.java:227) ~[?:?] at com.comphenix.protocol.reflect.StructureModifier.read(StructureModifier.java:195) ~[?:?] at com.gmail.filoghost.holographicdisplays.bridge.protocollib.current.packet.WrapperPlayServerSpawnEntityLiving.getEntity(WrapperPlayServerSpawnEntityLiving.java:70) ~[?:?] at com.gmail.filoghost.holographicdisplays.bridge.protocollib.current.packet.WrapperPlayServerSpawnEntityLiving.getEntity(WrapperPlayServerSpawnEntityLiving.java:79) ~[?:?] at com.gmail.filoghost.holographicdisplays.bridge.protocollib.current.ProtocolLibHookImpl$1.onPacketSending(ProtocolLibHookImpl.java:134) ~[?:?] at com.comphenix.protocol.injector.SortedPacketListenerList.invokeSendingListener(SortedPacketListenerList.java:195) ~[?:?] at com.comphenix.protocol.injector.SortedPacketListenerList.invokePacketSending(SortedPacketListenerList.java:149) ~[?:?] at com.comphenix.protocol.injector.PacketFilterManager.handlePacket(PacketFilterManager.java:588) ~[?:?] at com.comphenix.protocol.injector.PacketFilterManager.invokePacketSending(PacketFilterManager.java:564) ~[?:?] at com.comphenix.protocol.injector.netty.ProtocolInjector.packetQueued(ProtocolInjector.java:338) ~[?:?] at com.comphenix.protocol.injector.netty.ProtocolInjector.onPacketSending(ProtocolInjector.java:298) ~[?:?] at com.comphenix.protocol.injector.netty.ChannelInjector.processSending(ChannelInjector.java:364) ~[?:?] at com.comphenix.protocol.injector.netty.ChannelInjector.access$800(ChannelInjector.java:63) ~[?:?] at com.comphenix.protocol.injector.netty.ChannelInjector$3.handleScheduled(ChannelInjector.java:329) ~[?:?] at com.comphenix.protocol.injector.netty.ChannelInjector$3.onMessageScheduled(ChannelInjector.java:299) ~[?:?] at com.comphenix.protocol.injector.netty.ChannelProxy$2.schedulingRunnable(ChannelProxy.java:127) ~[?:?] at com.comphenix.protocol.injector.netty.EventLoopProxy.execute(EventLoopProxy.java:95) ~[?:?] at net.minecraft.server.v1_14_R1.NetworkManager.b(NetworkManager.java:193) ~[Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77] at net.minecraft.server.v1_14_R1.NetworkManager.sendPacket(NetworkManager.java:157) ~[Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77] at net.minecraft.server.v1_14_R1.PlayerConnection.a(PlayerConnection.java:1423) ~[Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77] at net.minecraft.server.v1_14_R1.PlayerConnection.sendPacket(PlayerConnection.java:1396) ~[Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77] at net.minecraft.server.v1_14_R1.EntityTrackerEntry.a(EntityTrackerEntry.java:242) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77] at net.minecraft.server.v1_14_R1.EntityTrackerEntry.b(EntityTrackerEntry.java:226) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77] at net.minecraft.server.v1_14_R1.PlayerChunkMap$EntityTracker.updatePlayer(PlayerChunkMap.java:1168) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77] at net.minecraft.server.v1_14_R1.PlayerChunkMap.a(PlayerChunkMap.java:1032) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77] at net.minecraft.server.v1_14_R1.PlayerChunkMap.sendChunk(PlayerChunkMap.java:713) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77] at net.minecraft.server.v1_14_R1.PlayerChunkMap.a(PlayerChunkMap.java:790) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77] at net.minecraft.server.v1_14_R1.PlayerChunkMap.addEntity(PlayerChunkMap.java:924) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77] at net.minecraft.server.v1_14_R1.ChunkProviderServer.addEntity(ChunkProviderServer.java:447) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77] at net.minecraft.server.v1_14_R1.WorldServer.registerEntity(WorldServer.java:1094) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77] at net.minecraft.server.v1_14_R1.WorldServer.addPlayer0(WorldServer.java:925) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77] at net.minecraft.server.v1_14_R1.WorldServer.addPlayerJoin(WorldServer.java:901) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77] at net.minecraft.server.v1_14_R1.PlayerList.a(PlayerList.java:211) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77] at net.minecraft.server.v1_14_R1.LoginListener.c(LoginListener.java:149) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77] at net.minecraft.server.v1_14_R1.LoginListener.tick(LoginListener.java:53) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77] at net.minecraft.server.v1_14_R1.NetworkManager.a(NetworkManager.java:230) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77] at net.minecraft.server.v1_14_R1.ServerConnection.c(ServerConnection.java:119) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77] at net.minecraft.server.v1_14_R1.MinecraftServer.b(MinecraftServer.java:1080) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77] at net.minecraft.server.v1_14_R1.DedicatedServer.b(DedicatedServer.java:396) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77] at net.minecraft.server.v1_14_R1.MinecraftServer.a(MinecraftServer.java:959) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77] at net.minecraft.server.v1_14_R1.MinecraftServer.run(MinecraftServer.java:804) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77] at java.lang.Thread.run(Unknown Source) [?:1.8.0_201] Caused by: com.comphenix.protocol.reflect.FieldAccessException: Cannot find entity from ID 250. at com.comphenix.protocol.injector.EntityUtilities.getEntityFromID(EntityUtilities.java:222) ~[?:?] at com.comphenix.protocol.injector.PacketFilterManager.getEntityFromID(PacketFilterManager.java:932) ~[?:?] at com.comphenix.protocol.wrappers.BukkitConverters$9.getSpecific(BukkitConverters.java:642) ~[?:?] ... 43 more

``Caused by: java.lang.RuntimeException: Cannot read private final net.minecraft.server.v1_14_R1.Entity net.citizensnpcs.nms.v1_14_R1.util.PlayerlistTracker.tracker
at com.comphenix.protocol.reflect.accessors.DefaultFieldAccessor.get(DefaultFieldAccessor.java:17) ~[?:?]
at com.comphenix.protocol.injector.EntityUtilities.getEntityFromID(EntityUtilities.java:216) ~[?:?]
at com.comphenix.protocol.injector.PacketFilterManager.getEntityFromID(PacketFilterManager.java:932) ~[?:?]
at com.comphenix.protocol.wrappers.BukkitConverters$9.getSpecific(BukkitConverters.java:642) ~[?:?]
... 43 more
Caused by: java.lang.IllegalArgumentException: Can not set final net.minecraft.server.v1_14_R1.Entity field net.citizensnpcs.nms.v1_14_R1.util.PlayerlistTracker.tracker to net.minecraft.server.v1_14_R1.PlayerChunkMap$EntityTracker
at sun.reflect.UnsafeFieldAccessorImpl.throwSetIllegalArgumentException(Unknown Source) ~[?:1.8.0_201]
at sun.reflect.UnsafeFieldAccessorImpl.throwSetIllegalArgumentException(Unknown Source) ~[?:1.8.0_201]
at sun.reflect.UnsafeFieldAccessorImpl.ensureObj(Unknown Source) ~[?:1.8.0_201]
at sun.reflect.UnsafeQualifiedObjectFieldAccessorImpl.get(Unknown Source) ~[?:1.8.0_201]
at java.lang.reflect.Field.get(Unknown Source) ~[?:1.8.0_201]
at com.comphenix.protocol.reflect.accessors.DefaultFieldAccessor.get(DefaultFieldAccessor.java:15) ~[?:?]
at com.comphenix.protocol.injector.EntityUtilities.getEntityFromID(EntityUtilities.java:216) ~[?:?]
at com.comphenix.protocol.injector.PacketFilterManager.getEntityFromID(PacketFilterManager.java:932) ~[?:?]
at com.comphenix.protocol.wrappers.BukkitConverters$9.getSpecific(BukkitConverters.java:642) ~[?:?]
... 43 more
[19:43:10] [Server thread/ERROR]: Parameters:
net.minecraft.server.v1_14_R1.PacketPlayOutSpawnEntityLiving@d75f46[
a=250
b=0f33c83a-9e8e-434c-b346-85dd9935e727
c=1
d=120.5
e=47.230000000000004
f=-87.5
g=0
h=0
i=0
j=0
k=0
l=0
m=net.minecraft.server.v1_14_R1.DataWatcher@5b3a03
n=
]`

[19:43:10] [Server thread/ERROR]: [HolographicDisplays] Unhandled exception occured in onPacketSending(PacketEvent) for HolographicDisplays java.lang.RuntimeException: Cannot retrieve entity from ID. at com.comphenix.protocol.wrappers.BukkitConverters$9.getSpecific(BukkitConverters.java:648) ~[?:?] at com.comphenix.protocol.wrappers.BukkitConverters$9.getSpecific(BukkitConverters.java:627) ~[?:?] at com.comphenix.protocol.reflect.StructureModifier.readInternal(StructureModifier.java:227) ~[?:?] at com.comphenix.protocol.reflect.StructureModifier.read(StructureModifier.java:195) ~[?:?] at com.gmail.filoghost.holographicdisplays.bridge.protocollib.current.packet.WrapperPlayServerEntityMetadata.getEntity(WrapperPlayServerEntityMetadata.java:65) ~[?:?] at com.gmail.filoghost.holographicdisplays.bridge.protocollib.current.packet.WrapperPlayServerEntityMetadata.getEntity(WrapperPlayServerEntityMetadata.java:74) ~[?:?] at com.gmail.filoghost.holographicdisplays.bridge.protocollib.current.ProtocolLibHookImpl$1.onPacketSending(ProtocolLibHookImpl.java:173) ~[?:?] at com.comphenix.protocol.injector.SortedPacketListenerList.invokeSendingListener(SortedPacketListenerList.java:195) ~[?:?] at com.comphenix.protocol.injector.SortedPacketListenerList.invokePacketSending(SortedPacketListenerList.java:149) ~[?:?] at com.comphenix.protocol.injector.PacketFilterManager.handlePacket(PacketFilterManager.java:588) ~[?:?] at com.comphenix.protocol.injector.PacketFilterManager.invokePacketSending(PacketFilterManager.java:564) ~[?:?] at com.comphenix.protocol.injector.netty.ProtocolInjector.packetQueued(ProtocolInjector.java:338) ~[?:?] at com.comphenix.protocol.injector.netty.ProtocolInjector.onPacketSending(ProtocolInjector.java:298) ~[?:?] at com.comphenix.protocol.injector.netty.ChannelInjector.processSending(ChannelInjector.java:364) ~[?:?] at com.comphenix.protocol.injector.netty.ChannelInjector.access$800(ChannelInjector.java:63) ~[?:?] at com.comphenix.protocol.injector.netty.ChannelInjector$3.handleScheduled(ChannelInjector.java:329) ~[?:?] at com.comphenix.protocol.injector.netty.ChannelInjector$3.onMessageScheduled(ChannelInjector.java:299) ~[?:?] at com.comphenix.protocol.injector.netty.ChannelProxy$2.schedulingRunnable(ChannelProxy.java:127) ~[?:?] at com.comphenix.protocol.injector.netty.EventLoopProxy.execute(EventLoopProxy.java:95) ~[?:?] at net.minecraft.server.v1_14_R1.NetworkManager.b(NetworkManager.java:193) ~[Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77] at net.minecraft.server.v1_14_R1.NetworkManager.sendPacket(NetworkManager.java:157) ~[Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77] at net.minecraft.server.v1_14_R1.PlayerConnection.a(PlayerConnection.java:1423) ~[Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77] at net.minecraft.server.v1_14_R1.PlayerConnection.sendPacket(PlayerConnection.java:1396) ~[Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77] at net.minecraft.server.v1_14_R1.EntityTrackerEntry.a(EntityTrackerEntry.java:244) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77] at net.minecraft.server.v1_14_R1.EntityTrackerEntry.b(EntityTrackerEntry.java:226) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77] at net.minecraft.server.v1_14_R1.PlayerChunkMap$EntityTracker.updatePlayer(PlayerChunkMap.java:1168) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77] at net.minecraft.server.v1_14_R1.PlayerChunkMap.a(PlayerChunkMap.java:1032) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77] at net.minecraft.server.v1_14_R1.PlayerChunkMap.sendChunk(PlayerChunkMap.java:713) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77] at net.minecraft.server.v1_14_R1.PlayerChunkMap.a(PlayerChunkMap.java:790) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77] at net.minecraft.server.v1_14_R1.PlayerChunkMap.addEntity(PlayerChunkMap.java:924) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77] at net.minecraft.server.v1_14_R1.ChunkProviderServer.addEntity(ChunkProviderServer.java:447) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77] at net.minecraft.server.v1_14_R1.WorldServer.registerEntity(WorldServer.java:1094) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77] at net.minecraft.server.v1_14_R1.WorldServer.addPlayer0(WorldServer.java:925) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77] at net.minecraft.server.v1_14_R1.WorldServer.addPlayerJoin(WorldServer.java:901) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77] at net.minecraft.server.v1_14_R1.PlayerList.a(PlayerList.java:211) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77] at net.minecraft.server.v1_14_R1.LoginListener.c(LoginListener.java:149) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77] at net.minecraft.server.v1_14_R1.LoginListener.tick(LoginListener.java:53) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77] at net.minecraft.server.v1_14_R1.NetworkManager.a(NetworkManager.java:230) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77] at net.minecraft.server.v1_14_R1.ServerConnection.c(ServerConnection.java:119) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77] at net.minecraft.server.v1_14_R1.MinecraftServer.b(MinecraftServer.java:1080) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77] at net.minecraft.server.v1_14_R1.DedicatedServer.b(DedicatedServer.java:396) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77] at net.minecraft.server.v1_14_R1.MinecraftServer.a(MinecraftServer.java:959) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77] at net.minecraft.server.v1_14_R1.MinecraftServer.run(MinecraftServer.java:804) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77] at java.lang.Thread.run(Unknown Source) [?:1.8.0_201] Caused by: com.comphenix.protocol.reflect.FieldAccessException: Cannot find entity from ID 250. at com.comphenix.protocol.injector.EntityUtilities.getEntityFromID(EntityUtilities.java:222) ~[?:?] at com.comphenix.protocol.injector.PacketFilterManager.getEntityFromID(PacketFilterManager.java:932) ~[?:?] at com.comphenix.protocol.wrappers.BukkitConverters$9.getSpecific(BukkitConverters.java:642) ~[?:?] ... 43 more Caused by: java.lang.RuntimeException: Cannot read private final net.minecraft.server.v1_14_R1.Entity net.citizensnpcs.nms.v1_14_R1.util.PlayerlistTracker.tracker at com.comphenix.protocol.reflect.accessors.DefaultFieldAccessor.get(DefaultFieldAccessor.java:17) ~[?:?] at com.comphenix.protocol.injector.EntityUtilities.getEntityFromID(EntityUtilities.java:216) ~[?:?] at com.comphenix.protocol.injector.PacketFilterManager.getEntityFromID(PacketFilterManager.java:932) ~[?:?] at com.comphenix.protocol.wrappers.BukkitConverters$9.getSpecific(BukkitConverters.java:642) ~[?:?] ... 43 more Caused by: java.lang.IllegalArgumentException: Can not set final net.minecraft.server.v1_14_R1.Entity field net.citizensnpcs.nms.v1_14_R1.util.PlayerlistTracker.tracker to net.minecraft.server.v1_14_R1.PlayerChunkMap$EntityTracker at sun.reflect.UnsafeFieldAccessorImpl.throwSetIllegalArgumentException(Unknown Source) ~[?:1.8.0_201] at sun.reflect.UnsafeFieldAccessorImpl.throwSetIllegalArgumentException(Unknown Source) ~[?:1.8.0_201] at sun.reflect.UnsafeFieldAccessorImpl.ensureObj(Unknown Source) ~[?:1.8.0_201] at sun.reflect.UnsafeQualifiedObjectFieldAccessorImpl.get(Unknown Source) ~[?:1.8.0_201] at java.lang.reflect.Field.get(Unknown Source) ~[?:1.8.0_201] at com.comphenix.protocol.reflect.accessors.DefaultFieldAccessor.get(DefaultFieldAccessor.java:15) ~[?:?] at com.comphenix.protocol.injector.EntityUtilities.getEntityFromID(EntityUtilities.java:216) ~[?:?] at com.comphenix.protocol.injector.PacketFilterManager.getEntityFromID(PacketFilterManager.java:932) ~[?:?] at com.comphenix.protocol.wrappers.BukkitConverters$9.getSpecific(BukkitConverters.java:642) ~[?:?] ... 43 more [19:43:10] [Server thread/ERROR]: Parameters: net.minecraft.server.v1_14_R1.PacketPlayOutEntityMetadata@1a7031b[ a=250 b=[net.minecraft.server.v1_14_R1.DataWatcher$Item@4fa552, net.minecraft.server.v1_14_R1.DataWatcher$Item@bdd95, net.minecraft.server.v1_14_R1.DataWatcher$Item@f2c390, net.minecraft.server.v1_14_R1.DataWatcher$Item@1dfe9a0, net.minecraft.server.v1_14_R1.DataWatcher$Item@9fa13c, net.minecraft.server.v1_14_R1.DataWatcher$Item@3e2f8f, net.minecraft.server.v1_14_R1.DataWatcher$Item@896db, net.minecraft.server.v1_14_R1.DataWatcher$Item@a2e213, net.minecraft.server.v1_14_R1.DataWatcher$Item@12b3dfa, net.minecraft.server.v1_14_R1.DataWatcher$Item@3c2347, net.minecraft.server.v1_14_R1.DataWatcher$Item@bad215, net.minecraft.server.v1_14_R1.DataWatcher$Item@15b1cab, net.minecraft.server.v1_14_R1.DataWatcher$Item@19d3917, net.minecraft.server.v1_14_R1.DataWatcher$Item@5408b8, net.minecraft.server.v1_14_R1.DataWatcher$Item@9e49dd, net.minecraft.server.v1_14_R1.DataWatcher$Item@19dbe21, net.minecraft.server.v1_14_R1.DataWatcher$Item@1467004, net.minecraft.server.v1_14_R1.DataWatcher$Item@17fa21c, net.minecraft.server.v1_14_R1.DataWatcher$Item@135dd0f, net.minecraft.server.v1_14_R1.DataWatcher$Item@1611abe] ]

[19:43:10] [Server thread/ERROR]: [HolographicDisplays] Unhandled exception occured in onPacketSending(PacketEvent) for HolographicDisplays
java.lang.RuntimeException: Cannot retrieve entity from ID.
at com.comphenix.protocol.wrappers.BukkitConverters$9.getSpecific(BukkitConverters.java:648) ~[?:?]
at com.comphenix.protocol.wrappers.BukkitConverters$9.getSpecific(BukkitConverters.java:627) ~[?:?]
at com.comphenix.protocol.reflect.StructureModifier.readInternal(StructureModifier.java:227) ~[?:?]
at com.comphenix.protocol.reflect.StructureModifier.read(StructureModifier.java:195) ~[?:?]
at com.gmail.filoghost.holographicdisplays.bridge.protocollib.current.packet.WrapperPlayServerSpawnEntityLiving.getEntity(WrapperPlayServerSpawnEntityLiving.java:70) ~[?:?]
at com.gmail.filoghost.holographicdisplays.bridge.protocollib.current.packet.WrapperPlayServerSpawnEntityLiving.getEntity(WrapperPlayServerSpawnEntityLiving.java:79) ~[?:?]
at com.gmail.filoghost.holographicdisplays.bridge.protocollib.current.ProtocolLibHookImpl$1.onPacketSending(ProtocolLibHookImpl.java:134) ~[?:?]
at com.comphenix.protocol.injector.SortedPacketListenerList.invokeSendingListener(SortedPacketListenerList.java:195) ~[?:?]
at com.comphenix.protocol.injector.SortedPacketListenerList.invokePacketSending(SortedPacketListenerList.java:149) ~[?:?]
at com.comphenix.protocol.injector.PacketFilterManager.handlePacket(PacketFilterManager.java:588) ~[?:?]
at com.comphenix.protocol.injector.PacketFilterManager.invokePacketSending(PacketFilterManager.java:564) ~[?:?]
at com.comphenix.protocol.injector.netty.ProtocolInjector.packetQueued(ProtocolInjector.java:338) ~[?:?]
at com.comphenix.protocol.injector.netty.ProtocolInjector.onPacketSending(ProtocolInjector.java:298) ~[?:?]
at com.comphenix.protocol.injector.netty.ChannelInjector.processSending(ChannelInjector.java:364) ~[?:?]
at com.comphenix.protocol.injector.netty.ChannelInjector.access$800(ChannelInjector.java:63) ~[?:?]
at com.comphenix.protocol.injector.netty.ChannelInjector$3.handleScheduled(ChannelInjector.java:329) ~[?:?]
at com.comphenix.protocol.injector.netty.ChannelInjector$3.onMessageScheduled(ChannelInjector.java:299) ~[?:?]
at com.comphenix.protocol.injector.netty.ChannelProxy$2.schedulingRunnable(ChannelProxy.java:127) ~[?:?]
at com.comphenix.protocol.injector.netty.EventLoopProxy.execute(EventLoopProxy.java:95) ~[?:?]
at net.minecraft.server.v1_14_R1.NetworkManager.b(NetworkManager.java:193) ~[Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77]
at net.minecraft.server.v1_14_R1.NetworkManager.sendPacket(NetworkManager.java:157) ~[Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77]
at net.minecraft.server.v1_14_R1.PlayerConnection.a(PlayerConnection.java:1423) ~[Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77]
at net.minecraft.server.v1_14_R1.PlayerConnection.sendPacket(PlayerConnection.java:1396) ~[Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77]
at net.minecraft.server.v1_14_R1.EntityTrackerEntry.a(EntityTrackerEntry.java:242) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77]
at net.minecraft.server.v1_14_R1.EntityTrackerEntry.b(EntityTrackerEntry.java:226) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77]
at net.minecraft.server.v1_14_R1.PlayerChunkMap$EntityTracker.updatePlayer(PlayerChunkMap.java:1168) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77]
at net.minecraft.server.v1_14_R1.PlayerChunkMap.a(PlayerChunkMap.java:1032) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77]
at net.minecraft.server.v1_14_R1.PlayerChunkMap.sendChunk(PlayerChunkMap.java:713) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77]
at net.minecraft.server.v1_14_R1.PlayerChunkMap.a(PlayerChunkMap.java:790) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77]
at net.minecraft.server.v1_14_R1.PlayerChunkMap.addEntity(PlayerChunkMap.java:924) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77]
at net.minecraft.server.v1_14_R1.ChunkProviderServer.addEntity(ChunkProviderServer.java:447) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77]
at net.minecraft.server.v1_14_R1.WorldServer.registerEntity(WorldServer.java:1094) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77]
at net.minecraft.server.v1_14_R1.WorldServer.addPlayer0(WorldServer.java:925) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77]
at net.minecraft.server.v1_14_R1.WorldServer.addPlayerJoin(WorldServer.java:901) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77]
at net.minecraft.server.v1_14_R1.PlayerList.a(PlayerList.java:211) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77]
at net.minecraft.server.v1_14_R1.LoginListener.c(LoginListener.java:149) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77]
at net.minecraft.server.v1_14_R1.LoginListener.tick(LoginListener.java:53) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77]
at net.minecraft.server.v1_14_R1.NetworkManager.a(NetworkManager.java:230) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77]
at net.minecraft.server.v1_14_R1.ServerConnection.c(ServerConnection.java:119) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77]
at net.minecraft.server.v1_14_R1.MinecraftServer.b(MinecraftServer.java:1080) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77]
at net.minecraft.server.v1_14_R1.DedicatedServer.b(DedicatedServer.java:396) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77]
at net.minecraft.server.v1_14_R1.MinecraftServer.a(MinecraftServer.java:959) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77]
at net.minecraft.server.v1_14_R1.MinecraftServer.run(MinecraftServer.java:804) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77]
at java.lang.Thread.run(Unknown Source) [?:1.8.0_201]
Caused by: com.comphenix.protocol.reflect.FieldAccessException: Cannot find entity from ID 249.
at com.comphenix.protocol.injector.EntityUtilities.getEntityFromID(EntityUtilities.java:222) ~[?:?]
at com.comphenix.protocol.injector.PacketFilterManager.getEntityFromID(PacketFilterManager.java:932) ~[?:?]
at com.comphenix.protocol.wrappers.BukkitConverters$9.getSpecific(BukkitConverters.java:642) ~[?:?]
... 43 more
Caused by: java.lang.RuntimeException: Cannot read private final net.minecraft.server.v1_14_R1.Entity net.citizensnpcs.nms.v1_14_R1.util.PlayerlistTracker.tracker
at com.comphenix.protocol.reflect.accessors.DefaultFieldAccessor.get(DefaultFieldAccessor.java:17) ~[?:?]
at com.comphenix.protocol.injector.EntityUtilities.getEntityFromID(EntityUtilities.java:216) ~[?:?]
at com.comphenix.protocol.injector.PacketFilterManager.getEntityFromID(PacketFilterManager.java:932) ~[?:?]
at com.comphenix.protocol.wrappers.BukkitConverters$9.getSpecific(BukkitConverters.java:642) ~[?:?]
... 43 more
Caused by: java.lang.IllegalArgumentException: Can not set final net.minecraft.server.v1_14_R1.Entity field net.citizensnpcs.nms.v1_14_R1.util.PlayerlistTracker.tracker to net.minecraft.server.v1_14_R1.PlayerChunkMap$EntityTracker
at sun.reflect.UnsafeFieldAccessorImpl.throwSetIllegalArgumentException(Unknown Source) ~[?:1.8.0_201]
at sun.reflect.UnsafeFieldAccessorImpl.throwSetIllegalArgumentException(Unknown Source) ~[?:1.8.0_201]
at sun.reflect.UnsafeFieldAccessorImpl.ensureObj(Unknown Source) ~[?:1.8.0_201]
at sun.reflect.UnsafeQualifiedObjectFieldAccessorImpl.get(Unknown Source) ~[?:1.8.0_201]
at java.lang.reflect.Field.get(Unknown Source) ~[?:1.8.0_201]
at com.comphenix.protocol.reflect.accessors.DefaultFieldAccessor.get(DefaultFieldAccessor.java:15) ~[?:?]
at com.comphenix.protocol.injector.EntityUtilities.getEntityFromID(EntityUtilities.java:216) ~[?:?]
at com.comphenix.protocol.injector.PacketFilterManager.getEntityFromID(PacketFilterManager.java:932) ~[?:?]
at com.comphenix.protocol.wrappers.BukkitConverters$9.getSpecific(BukkitConverters.java:642) ~[?:?]
... 43 more
[19:43:10] [Server thread/ERROR]: Parameters:
net.minecraft.server.v1_14_R1.PacketPlayOutSpawnEntityLiving@b4d2ee[
a=249
b=7e1b0950-0099-45c3-b96c-a6a9be532c04
c=1
d=120.5
e=47.480000000000004
f=-87.5
g=0
h=0
i=0
j=0
k=0
l=0
m=net.minecraft.server.v1_14_R1.DataWatcher@992eff
n=
]`

[19:43:10] [Server thread/ERROR]: [HolographicDisplays] Unhandled exception occured in onPacketSending(PacketEvent) for HolographicDisplays java.lang.RuntimeException: Cannot retrieve entity from ID. at com.comphenix.protocol.wrappers.BukkitConverters$9.getSpecific(BukkitConverters.java:648) ~[?:?] at com.comphenix.protocol.wrappers.BukkitConverters$9.getSpecific(BukkitConverters.java:627) ~[?:?] at com.comphenix.protocol.reflect.StructureModifier.readInternal(StructureModifier.java:227) ~[?:?] at com.comphenix.protocol.reflect.StructureModifier.read(StructureModifier.java:195) ~[?:?] at com.gmail.filoghost.holographicdisplays.bridge.protocollib.current.packet.WrapperPlayServerEntityMetadata.getEntity(WrapperPlayServerEntityMetadata.java:65) ~[?:?] at com.gmail.filoghost.holographicdisplays.bridge.protocollib.current.packet.WrapperPlayServerEntityMetadata.getEntity(WrapperPlayServerEntityMetadata.java:74) ~[?:?] at com.gmail.filoghost.holographicdisplays.bridge.protocollib.current.ProtocolLibHookImpl$1.onPacketSending(ProtocolLibHookImpl.java:173) ~[?:?] at com.comphenix.protocol.injector.SortedPacketListenerList.invokeSendingListener(SortedPacketListenerList.java:195) ~[?:?] at com.comphenix.protocol.injector.SortedPacketListenerList.invokePacketSending(SortedPacketListenerList.java:149) ~[?:?] at com.comphenix.protocol.injector.PacketFilterManager.handlePacket(PacketFilterManager.java:588) ~[?:?] at com.comphenix.protocol.injector.PacketFilterManager.invokePacketSending(PacketFilterManager.java:564) ~[?:?] at com.comphenix.protocol.injector.netty.ProtocolInjector.packetQueued(ProtocolInjector.java:338) ~[?:?] at com.comphenix.protocol.injector.netty.ProtocolInjector.onPacketSending(ProtocolInjector.java:298) ~[?:?] at com.comphenix.protocol.injector.netty.ChannelInjector.processSending(ChannelInjector.java:364) ~[?:?] at com.comphenix.protocol.injector.netty.ChannelInjector.access$800(ChannelInjector.java:63) ~[?:?] at com.comphenix.protocol.injector.netty.ChannelInjector$3.handleScheduled(ChannelInjector.java:329) ~[?:?] at com.comphenix.protocol.injector.netty.ChannelInjector$3.onMessageScheduled(ChannelInjector.java:299) ~[?:?] at com.comphenix.protocol.injector.netty.ChannelProxy$2.schedulingRunnable(ChannelProxy.java:127) ~[?:?] at com.comphenix.protocol.injector.netty.EventLoopProxy.execute(EventLoopProxy.java:95) ~[?:?] at net.minecraft.server.v1_14_R1.NetworkManager.b(NetworkManager.java:193) ~[Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77] at net.minecraft.server.v1_14_R1.NetworkManager.sendPacket(NetworkManager.java:157) ~[Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77] at net.minecraft.server.v1_14_R1.PlayerConnection.a(PlayerConnection.java:1423) ~[Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77] at net.minecraft.server.v1_14_R1.PlayerConnection.sendPacket(PlayerConnection.java:1396) ~[Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77] at net.minecraft.server.v1_14_R1.EntityTrackerEntry.a(EntityTrackerEntry.java:244) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77] at net.minecraft.server.v1_14_R1.EntityTrackerEntry.b(EntityTrackerEntry.java:226) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77] at net.minecraft.server.v1_14_R1.PlayerChunkMap$EntityTracker.updatePlayer(PlayerChunkMap.java:1168) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77] at net.minecraft.server.v1_14_R1.PlayerChunkMap.a(PlayerChunkMap.java:1032) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77] at net.minecraft.server.v1_14_R1.PlayerChunkMap.sendChunk(PlayerChunkMap.java:713) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77] at net.minecraft.server.v1_14_R1.PlayerChunkMap.a(PlayerChunkMap.java:790) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77] at net.minecraft.server.v1_14_R1.PlayerChunkMap.addEntity(PlayerChunkMap.java:924) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77] at net.minecraft.server.v1_14_R1.ChunkProviderServer.addEntity(ChunkProviderServer.java:447) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77] at net.minecraft.server.v1_14_R1.WorldServer.registerEntity(WorldServer.java:1094) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77] at net.minecraft.server.v1_14_R1.WorldServer.addPlayer0(WorldServer.java:925) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77] at net.minecraft.server.v1_14_R1.WorldServer.addPlayerJoin(WorldServer.java:901) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77] at net.minecraft.server.v1_14_R1.PlayerList.a(PlayerList.java:211) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77] at net.minecraft.server.v1_14_R1.LoginListener.c(LoginListener.java:149) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77] at net.minecraft.server.v1_14_R1.LoginListener.tick(LoginListener.java:53) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77] at net.minecraft.server.v1_14_R1.NetworkManager.a(NetworkManager.java:230) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77] at net.minecraft.server.v1_14_R1.ServerConnection.c(ServerConnection.java:119) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77] at net.minecraft.server.v1_14_R1.MinecraftServer.b(MinecraftServer.java:1080) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77] at net.minecraft.server.v1_14_R1.DedicatedServer.b(DedicatedServer.java:396) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77] at net.minecraft.server.v1_14_R1.MinecraftServer.a(MinecraftServer.java:959) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77] at net.minecraft.server.v1_14_R1.MinecraftServer.run(MinecraftServer.java:804) [Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77] at java.lang.Thread.run(Unknown Source) [?:1.8.0_201] Caused by: com.comphenix.protocol.reflect.FieldAccessException: Cannot find entity from ID 249. at com.comphenix.protocol.injector.EntityUtilities.getEntityFromID(EntityUtilities.java:222) ~[?:?] at com.comphenix.protocol.injector.PacketFilterManager.getEntityFromID(PacketFilterManager.java:932)
[?:?] at com.comphenix.protocol.wrappers.BukkitConverters$9.getSpecific(BukkitConverters.java:642) ~[?:?] ... 43 more Caused by: java.lang.RuntimeException: Cannot read private final net.minecraft.server.v1_14_R1.Entity net.citizensnpcs.nms.v1_14_R1.util.PlayerlistTracker.tracker at com.comphenix.protocol.reflect.accessors.DefaultFieldAccessor.get(DefaultFieldAccessor.java:17) ~[?:?] at com.comphenix.protocol.injector.EntityUtilities.getEntityFromID(EntityUtilities.java:216) ~[?:?] at com.comphenix.protocol.injector.PacketFilterManager.getEntityFromID(PacketFilterManager.java:932) ~[?:?] at com.comphenix.protocol.wrappers.BukkitConverters$9.getSpecific(BukkitConverters.java:642) ~[?:?] ... 43 more Caused by: java.lang.IllegalArgumentException: Can not set final net.minecraft.server.v1_14_R1.Entity field net.citizensnpcs.nms.v1_14_R1.util.PlayerlistTracker.tracker to net.minecraft.server.v1_14_R1.PlayerChunkMap$EntityTracker at sun.reflect.UnsafeFieldAccessorImpl.throwSetIllegalArgumentException(Unknown Source) ~[?:1.8.0_201] at sun.reflect.UnsafeFieldAccessorImpl.throwSetIllegalArgumentException(Unknown Source) ~[?:1.8.0_201] at sun.reflect.UnsafeFieldAccessorImpl.ensureObj(Unknown Source) ~[?:1.8.0_201] at sun.reflect.UnsafeQualifiedObjectFieldAccessorImpl.get(Unknown Source) ~[?:1.8.0_201] at java.lang.reflect.Field.get(Unknown Source) ~[?:1.8.0_201] at com.comphenix.protocol.reflect.accessors.DefaultFieldAccessor.get(DefaultFieldAccessor.java:15) ~[?:?] at com.comphenix.protocol.injector.EntityUtilities.getEntityFromID(EntityUtilities.java:216) ~[?:?] at com.comphenix.protocol.injector.PacketFilterManager.getEntityFromID(PacketFilterManager.java:932) ~[?:?] at com.comphenix.protocol.wrappers.BukkitConverters$9.getSpecific(BukkitConverters.java:642) ~[?:?] ... 43 more [19:43:10] [Server thread/ERROR]: Parameters: net.minecraft.server.v1_14_R1.PacketPlayOutEntityMetadata@1301fa2[ a=249 b=[net.minecraft.server.v1_14_R1.DataWatcher$Item@2f5cf2, net.minecraft.server.v1_14_R1.DataWatcher$Item@1f629b2, net.minecraft.server.v1_14_R1.DataWatcher$Item@41db09, net.minecraft.server.v1_14_R1.DataWatcher$Item@1b0f76b, net.minecraft.server.v1_14_R1.DataWatcher$Item@1bef263, net.minecraft.server.v1_14_R1.DataWatcher$Item@175e99f, net.minecraft.server.v1_14_R1.DataWatcher$Item@1b6f4eb, net.minecraft.server.v1_14_R1.DataWatcher$Item@1334c99, net.minecraft.server.v1_14_R1.DataWatcher$Item@1268676, net.minecraft.server.v1_14_R1.DataWatcher$Item@10fa49c, net.minecraft.server.v1_14_R1.DataWatcher$Item@14c11ba, net.minecraft.server.v1_14_R1.DataWatcher$Item@eac08e, net.minecraft.server.v1_14_R1.DataWatcher$Item@198ffd3, net.minecraft.server.v1_14_R1.DataWatcher$Item@18d80f8, net.minecraft.server.v1_14_R1.DataWatcher$Item@3d97b2, net.minecraft.server.v1_14_R1.DataWatcher$Item@65d08b, net.minecraft.server.v1_14_R1.DataWatcher$Item@43def3, net.minecraft.server.v1_14_R1.DataWatcher$Item@11c1383, net.minecraft.server.v1_14_R1.DataWatcher$Item@1b88955, net.minecraft.server.v1_14_R1.DataWatcher$Item@109f9a1] ]

[19:43:10] [Netty Server IO #0/WARN]: An exceptionCaught() event was fired, and it reached at the tail of the pipeline. It usually means the last handler in the pipeline did not handle the exception. java.nio.channels.ClosedChannelException: null at io.netty.channel.AbstractChannel$AbstractUnsafe.write(...)(Unknown Source) ~[Spigot-1.14.3.jar:git-Spigot-d05d3c1-31d4a77] [19:43:10] [Server thread/INFO]: OngMong[/222.239.174.231:3881] logged in with entity id 337 at ([spawn]123.9978581425722, 58.0, -83.10628702520856) [19:43:10] [Server thread/INFO]: OngMong lost connection: Internal Exception: java.lang.IllegalStateException: EvtPacket cannot be triggered asynchronously from another thread. [19:43:11] [Server thread/INFO]: [<] OngMong님이 퇴장하셨습니다.

Help me.... plz

Duplicate of #135