[14:15:27 ERROR]: Could not pass event PlayerQuitEvent to McCombatLevel v2.1.2
org.bukkit.event.EventException: null
at org.bukkit.plugin.EventExecutor$2.execute(EventExecutor.java:72) ~[patched_1.12.2.jar:git-Paper-1415]
at co.aikar.timings.TimedEventExecutor.execute(TimedEventExecutor.java:78) ~[patched_1.12.2.jar:git-Paper-1415]
at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[patched_1.12.2.jar:git-Paper-1415]
at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:515) [patched_1.12.2.jar:git-Paper-1415]
at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:500) [patched_1.12.2.jar:git-Paper-1415]
at net.minecraft.server.v1_12_R1.PlayerList.disconnect(PlayerList.java:429) [patched_1.12.2.jar:git-Paper-1415]
at net.minecraft.server.v1_12_R1.PlayerConnection.a(PlayerConnection.java:1147) [patched_1.12.2.jar:git-Paper-1415]
at net.minecraft.server.v1_12_R1.NetworkManager.handleDisconnection(NetworkManager.java:343) [patched_1.12.2.jar:git-Paper-1415]
at net.minecraft.server.v1_12_R1.ServerConnection.c(ServerConnection.java:184) [patched_1.12.2.jar:git-Paper-1415]
at net.minecraft.server.v1_12_R1.MinecraftServer.D(MinecraftServer.java:941) [patched_1.12.2.jar:git-Paper-1415]
at net.minecraft.server.v1_12_R1.DedicatedServer.D(DedicatedServer.java:427) [patched_1.12.2.jar:git-Paper-1415]
at net.minecraft.server.v1_12_R1.MinecraftServer.C(MinecraftServer.java:767) [patched_1.12.2.jar:git-Paper-1415]
at net.minecraft.server.v1_12_R1.MinecraftServer.run(MinecraftServer.java:665) [patched_1.12.2.jar:git-Paper-1415]
at java.lang.Thread.run(Unknown Source) [?:1.8.0_172]
Caused by: java.lang.NullPointerException
at com.gmail.mrphpfan.mccombatlevel.McCombatLevel.removeCachedLevels(McCombatLevel.java:180) ~[?:?]
at com.gmail.mrphpfan.mccombatlevel.listener.PlayerListener.onPlayerLogout(PlayerListener.java:44) ~[?:?]
at com.destroystokyo.paper.event.executor.asm.generated.GeneratedEventExecutor239.execute(Unknown Source) ~[?:?]
at org.bukkit.plugin.EventExecutor$2.execute(EventExecutor.java:70) ~[patched_1.12.2.jar:git-Paper-1415]
... 13 more