[19:37:03] [Server thread/ERROR]: Could not pass event InventoryClickEvent to Capabilities v1.0
org.bukkit.event.EventException: null
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:306) ~[craftbukkit.jar:git-Spigot-3d850ec-809c399]
	at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[craftbukkit.jar:git-Spigot-3d850ec-809c399]
	at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:500) [craftbukkit.jar:git-Spigot-3d850ec-809c399]
	at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:485) [craftbukkit.jar:git-Spigot-3d850ec-809c399]
	at net.minecraft.server.v1_12_R1.PlayerConnection.a(PlayerConnection.java:1889) [craftbukkit.jar:git-Spigot-3d850ec-809c399]
	at net.minecraft.server.v1_12_R1.PacketPlayInWindowClick.a(SourceFile:33) [craftbukkit.jar:git-Spigot-3d850ec-809c399]
	at net.minecraft.server.v1_12_R1.PacketPlayInWindowClick.a(SourceFile:10) [craftbukkit.jar:git-Spigot-3d850ec-809c399]
	at net.minecraft.server.v1_12_R1.PlayerConnectionUtils$1.run(SourceFile:13) [craftbukkit.jar:git-Spigot-3d850ec-809c399]
	at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) [?:1.8.0_144]
	at java.util.concurrent.FutureTask.run(Unknown Source) [?:1.8.0_144]
	at net.minecraft.server.v1_12_R1.SystemUtils.a(SourceFile:46) [craftbukkit.jar:git-Spigot-3d850ec-809c399]
	at net.minecraft.server.v1_12_R1.MinecraftServer.D(MinecraftServer.java:748) [craftbukkit.jar:git-Spigot-3d850ec-809c399]
	at net.minecraft.server.v1_12_R1.DedicatedServer.D(DedicatedServer.java:406) [craftbukkit.jar:git-Spigot-3d850ec-809c399]
	at net.minecraft.server.v1_12_R1.MinecraftServer.C(MinecraftServer.java:679) [craftbukkit.jar:git-Spigot-3d850ec-809c399]
	at net.minecraft.server.v1_12_R1.MinecraftServer.run(MinecraftServer.java:577) [craftbukkit.jar:git-Spigot-3d850ec-809c399]
	at java.lang.Thread.run(Unknown Source) [?:1.8.0_144]
Caused by: java.lang.NullPointerException
	at ru.ewrs728.treecapabilities.GUIClickEvent.GUI(GUIClickEvent.java:181) ~[?:?]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_144]
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_144]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_144]
	at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_144]
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:302) ~[craftbukkit.jar:git-Spigot-3d850ec-809c399]
	... 15 more