[20-11-2019 15:48:09] KaelCraft issued server command: /cui list
[20-11-2019 15:48:09] null
[20-11-2019 15:48:09] org.bukkit.command.CommandException: Unhandled exception executing command 'cui' in plugin CustomItems v2.6.4
[20-11-2019 15:48:09] at org.bukkit.command.PluginCommand.execute(PluginCommand.java:47) ~[spigot.jar:git-Spigot-1981d55-860b354]
[20-11-2019 15:48:09] at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:149) ~[spigot.jar:git-Spigot-1981d55-860b354]
[20-11-2019 15:48:09] at org.bukkit.craftbukkit.v1_14_R1.CraftServer.dispatchCommand(CraftServer.java:710) ~[spigot.jar:git-Spigot-1981d55-860b354]
[20-11-2019 15:48:09] at net.minecraft.server.v1_14_R1.PlayerConnection.handleCommand(PlayerConnection.java:1641) ~[spigot.jar:git-Spigot-1981d55-860b354]
[20-11-2019 15:48:09] at net.minecraft.server.v1_14_R1.PlayerConnection.a(PlayerConnection.java:1481) ~[spigot.jar:git-Spigot-1981d55-860b354]
[20-11-2019 15:48:09] at net.minecraft.server.v1_14_R1.PacketPlayInChat.a(PacketPlayInChat.java:47) ~[spigot.jar:git-Spigot-1981d55-860b354]
[20-11-2019 15:48:09] at net.minecraft.server.v1_14_R1.PacketPlayInChat.a(PacketPlayInChat.java:1) ~[spigot.jar:git-Spigot-1981d55-860b354]
[20-11-2019 15:48:09] at net.minecraft.server.v1_14_R1.PlayerConnectionUtils.lambda$0(PlayerConnectionUtils.java:19) ~[spigot.jar:git-Spigot-1981d55-860b354]
[20-11-2019 15:48:09] at net.minecraft.server.v1_14_R1.TickTask.run(SourceFile:18) [spigot.jar:git-Spigot-1981d55-860b354]
[20-11-2019 15:48:09] at net.minecraft.server.v1_14_R1.IAsyncTaskHandler.executeTask(SourceFile:144) [spigot.jar:git-Spigot-1981d55-860b354]
[20-11-2019 15:48:09] at net.minecraft.server.v1_14_R1.IAsyncTaskHandlerReentrant.executeTask(SourceFile:23) [spigot.jar:git-Spigot-1981d55-860b354]
[20-11-2019 15:48:09] at net.minecraft.server.v1_14_R1.IAsyncTaskHandler.executeNext(SourceFile:118) [spigot.jar:git-Spigot-1981d55-860b354]
[20-11-2019 15:48:09] at net.minecraft.server.v1_14_R1.MinecraftServer.aX(MinecraftServer.java:908) [spigot.jar:git-Spigot-1981d55-860b354]
[20-11-2019 15:48:09] at net.minecraft.server.v1_14_R1.MinecraftServer.executeNext(MinecraftServer.java:901) [spigot.jar:git-Spigot-1981d55-860b354]
[20-11-2019 15:48:09] at net.minecraft.server.v1_14_R1.IAsyncTaskHandler.executeAll(SourceFile:103) [spigot.jar:git-Spigot-1981d55-860b354]
[20-11-2019 15:48:09] at net.minecraft.server.v1_14_R1.MinecraftServer.sleepForTick(MinecraftServer.java:884) [spigot.jar:git-Spigot-1981d55-860b354]
[20-11-2019 15:48:09] at net.minecraft.server.v1_14_R1.MinecraftServer.run(MinecraftServer.java:818) [spigot.jar:git-Spigot-1981d55-860b354]
[20-11-2019 15:48:09] at java.lang.Thread.run(Thread.java:748) [?:1.8.0_212]
[20-11-2019 15:48:09] Caused by: java.lang.ArrayIndexOutOfBoundsException