[10.06 19:03:32] [Server] [Netty Epoll Server IO #3/INFO]: Error Unable to intercept a read client packet. (java.lang.IllegalArgumentException: Unable to find a field null with the type com.mojang.authlib.GameProfile in net.minecraft.network.protocol.login.PacketLoginInStart) occured in com.comphenix.protocol.injector.netty.ChannelInjector@276a165c.
[10.06 19:03:32] [Server] [Netty Epoll Server IO #3/ERROR]: [ProtocolLib] INTERNAL ERROR: Unable to intercept a read client packet.
[10.06 19:03:32] [Server] If this problem hasn't already been reported, please open a ticket
[10.06 19:03:32] [Server] at https://github.com/dmulloy2/ProtocolLib/issues with the following data:
[10.06 19:03:32] [Server] Stack Trace:
[10.06 19:03:32] [Server] java.lang.IllegalArgumentExceptionUnable to find a field null with the type com.mojang.authlib.GameProfile in net.minecraft.network.protocol.login.PacketLoginInStart
[10.06 19:03:32] [Server] at com.comphenix.protocol.reflect.FuzzyReflection.getFieldByType(FuzzyReflection.java:397)
[10.06 19:03:32] [Server] at com.comphenix.protocol.reflect.accessors.Accessors.getFieldAccessor(Accessors.java:57)
[10.06 19:03:32] [Server] at com.comphenix.protocol.injector.netty.ChannelInjector.handleLogin(ChannelInjector.java:658)
[10.06 19:03:32] [Server] at com.comphenix.protocol.injector.netty.ChannelInjector.decode(ChannelInjector.java:591)
[10.06 19:03:32] [Server] at io.netty.handler.codec.ByteToMessageDecoder.decodeRemovalReentryProtection(ByteToMessageDecoder.java:510)
[10.06 19:03:32] [Server] at io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:449)
[10.06 19:03:32] [Server] at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:279)
[10.06 19:03:32] [Server] at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)
[10.06 19:03:32] [Server] at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)
[10.06 19:03:32] [Server] at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)
[10.06 19:03:32] [Server] at com.comphenix.protocol.injector.netty.ChannelInjector$2.channelRead(ChannelInjector.java:292)
[10.06 19:03:32] [Server] at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)
[10.06 19:03:32] [Server] at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)
[10.06 19:03:32] [Server] at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)
[10.06 19:03:32] [Server] at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:327)
[10.06 19:03:32] [Server] at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:314)
[10.06 19:03:32] [Server] at io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:435)
[10.06 19:03:32] [Server] at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:279)
[10.06 19:03:32] [Server] at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)
[10.06 19:03:32] [Server] at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)
[10.06 19:03:32] [Server] at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)
[10.06 19:03:32] [Server] at net.minecraft.server.network.LegacyPingHandler.channelRead(LegacyPingHandler.java:90)
[10.06 19:03:32] [Server] at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)
[10.06 19:03:32] [Server] at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)
[10.06 19:03:32] [Server] at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)
[10.06 19:03:32] [Server] at io.netty.handler.timeout.IdleStateHandler.channelRead(IdleStateHandler.java:286)
[10.06 19:03:32] [Server] at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)
[10.06 19:03:32] [Server] at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)
[10.06 19:03:32] [Server] at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)
[10.06 19:03:32] [Server] at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1410)
[10.06 19:03:32] [Server] at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)
[10.06 19:03:32] [Server] at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)
[10.06 19:03:32] [Server] at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:919)
[10.06 19:03:32] [Server] at io.netty.channel.epoll.AbstractEpollStreamChannel$EpollStreamUnsafe.epollInReady(AbstractEpollStreamChannel.java:800)
[10.06 19:03:32] [Server] at io.netty.channel.epoll.EpollEventLoop.processReady(EpollEventLoop.java:487)
[10.06 19:03:32] [Server] at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:385)
[10.06 19:03:32] [Server] at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:995)
[10.06 19:03:32] [Server] at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
[10.06 19:03:32] [Server] at java.base/java.lang.Thread.run(Thread.java:833)
[10.06 19:03:32] [Server] Dump:
[10.06 19:03:32] [Server] Parameters
[10.06 19:03:32] [Server] io.netty.buffer.PooledUnsafeDirectByteBuf@3529ca9f[
[10.06 19:03:32] [Server] memoryAddress=139786668994576
[10.06 19:03:32] [Server] recyclerHandle=NOOP_HANDLE
[10.06 19:03:32] [Server] chunk=Chunk(6ac3b1%, 32768/4194304)
[10.06 19:03:32] [Server] handle=562980018192384
[10.06 19:03:32] [Server] memory=java.nio.DirectByteBuffer[pos=lim=4194304 cap=4194304]
[10.06 19:03:32] [Server] offset=8192
[10.06 19:03:32] [Server] length=19
[10.06 19:03:32] [Server] maxLength=32
[10.06 19:03:32] [Server] cache=io.netty.buffer.PoolThreadCache@7216c353
[10.06 19:03:32] [Server] tmpNioBuf=
[10.06 19:03:32] [Server] allocator=PooledByteBufAllocator(directByDefaulttrue)
[10.06 19:03:32] [Server] refCnt=2
[10.06 19:03:32] [Server] readerIndex=19
[10.06 19:03:32] [Server] writerIndex=19
[10.06 19:03:32] [Server] markedReaderIndex=0
[10.06 19:03:32] [Server] markedWriterIndex=0
[10.06 19:03:32] [Server] maxCapacity=2147483647
[10.06 19:03:32] [Server] ]
[10.06 19:03:32] [Server] manager:
[10.06 19:03:32] [Server] com.comphenix.protocol.injector.PacketFilterManager@5ec89b5e[
[10.06 19:03:32] [Server] unhookTask=com.comphenix.protocol.injector.DelayedSingleTask@14fbd8a8
[10.06 19:03:32] [Server] packetListeners=[PacketAdapter[plugin=HiddenArmor, sending=ListeningWhitelist[priority=NORMAL, packets=[ENTITY_EQUIPMENT[class=PacketPlayOutEntityEquipment, id=80]], gamephase=PLAYING, options=[]], receiving=EMPTY_WHITELIST], PacketAdapter[plugin=HiddenArmor, sending=ListeningWhitelist[priority=HIGH, packets=[WINDOW_ITEMS[class=PacketPlayOutWindowItems, id=20], SET_SLOT[class=PacketPlayOutSetSlot, id=22]], gamephase=PLAYING, options=[]], receiving=EMPTY_WHITELIST]]
[10.06 19:03:32] [Server] packetInjector=com.comphenix.protocol.injector.netty.ProtocolInjector$5@1870b18
[10.06 19:03:32] [Server] playerInjection=com.comphenix.protocol.injector.netty.ProtocolInjector$4@66661e44
[10.06 19:03:32] [Server] inputBufferedPackets=[]
[10.06 19:03:32] [Server] recievedListeners=com.comphenix.protocol.injector.SortedPacketListenerList@7c6e6bbd
[10.06 19:03:32] [Server] sendingListeners=com.comphenix.protocol.injector.SortedPacketListenerList@361ac200
[10.06 19:03:32] [Server] hasClosed=false
[10.06 19:03:32] [Server] classLoader=org.bukkit.plugin.java.PluginClassLoader@48bdc6a
[10.06 19:03:32] [Server] reporter=com.comphenix.protocol.ProtocolLib$1@59be6b85
[10.06 19:03:32] [Server] server=CraftServer{serverName=CraftBukkit,serverVersion=3521-Spigot-1dffefb-cc7edd6,minecraftVersion=1.19}
[10.06 19:03:32] [Server] library=ProtocolLib v4.8.0
[10.06 19:03:32] [Server] asyncFilterManager=com.comphenix.protocol.async.AsyncFilterManager@3668129e
[10.06 19:03:32] [Server] knowsServerPackets=true
[10.06 19:03:32] [Server] knowsClientPackets=true
[10.06 19:03:32] [Server] phaseLoginCount=0
[10.06 19:03:32] [Server] phasePlayingCount=2
[10.06 19:03:32] [Server] packetCreation=false
[10.06 19:03:32] [Server] nettyInjector=com.comphenix.protocol.injector.netty.ProtocolInjector@43f93272
[10.06 19:03:32] [Server] pluginVerifier=com.comphenix.protocol.injector.PluginVerifier@7176373e
[10.06 19:03:32] [Server] hasRecycleDistance=true
[10.06 19:03:32] [Server] minecraftVersion=(MC1.19.0)
[10.06 19:03:32] [Server] debug=false
[10.06 19:03:32] [Server] ]
[10.06 19:03:32] [Server] Sender:
[10.06 19:03:32] [Server] com.comphenix.protocol.injector.netty.ChannelInjector@276a165c[
[10.06 19:03:32] [Server] decodeBuffer=protected void net.minecraft.network.PacketDecoder.decode(io.netty.channel.ChannelHandlerContext,io.netty.buffer.ByteBuf,java.util.List) throws java.lang.Exception
[10.06 19:03:32] [Server] encodeBuffer=protected void net.minecraft.network.PacketEncoder.encode(io.netty.channel.ChannelHandlerContext,java.lang.Object,io.netty.buffer.ByteBuf) throws java.lang.Exception
[10.06 19:03:32] [Server] factory=com.comphenix.protocol.injector.netty.InjectionFactory@4aea9706
[10.06 19:03:32] [Server] player=com.comphenix.protocol.injector.server.TemporaryPlayerInvocationHandler@33da236a
[10.06 19:03:32] [Server] updated=
[10.06 19:03:32] [Server] playerName=

Please use the latest development build from https://ci.dmulloy2.net/job/ProtocolLib/lastSuccessfulBuild/ to get 1.19 support