[05:18:39 ERROR]: Could not pass event InventoryClickEvent to EasyBans v1.0
org.bukkit.event.EventException
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:306) ~[server.jar:git-Spigot-96235ab-dfee3d9]
	at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[server.jar:git-Spigot-96235ab-dfee3d9]
	at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:502) [server.jar:git-Spigot-96235ab-dfee3d9]
	at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:487) [server.jar:git-Spigot-96235ab-dfee3d9]
	at net.minecraft.server.v1_11_R1.PlayerConnection.a(PlayerConnection.java:1840) [server.jar:git-Spigot-96235ab-dfee3d9]
	at net.minecraft.server.v1_11_R1.PacketPlayInWindowClick.a(SourceFile:33) [server.jar:git-Spigot-96235ab-dfee3d9]
	at net.minecraft.server.v1_11_R1.PacketPlayInWindowClick.a(SourceFile:10) [server.jar:git-Spigot-96235ab-dfee3d9]
	at net.minecraft.server.v1_11_R1.PlayerConnectionUtils$1.run(SourceFile:13) [server.jar:git-Spigot-96235ab-dfee3d9]
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_121]
	at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_121]
	at net.minecraft.server.v1_11_R1.SystemUtils.a(SourceFile:46) [server.jar:git-Spigot-96235ab-dfee3d9]
	at net.minecraft.server.v1_11_R1.MinecraftServer.D(MinecraftServer.java:747) [server.jar:git-Spigot-96235ab-dfee3d9]
	at net.minecraft.server.v1_11_R1.DedicatedServer.D(DedicatedServer.java:399) [server.jar:git-Spigot-96235ab-dfee3d9]
	at net.minecraft.server.v1_11_R1.MinecraftServer.C(MinecraftServer.java:678) [server.jar:git-Spigot-96235ab-dfee3d9]
	at net.minecraft.server.v1_11_R1.MinecraftServer.run(MinecraftServer.java:576) [server.jar:git-Spigot-96235ab-dfee3d9]
	at java.lang.Thread.run(Thread.java:745) [?:1.8.0_121]
Caused by: java.lang.NullPointerException
	at com.exc.EasyBans.main.onButtonClick(easybans.java:141) ~[?:?]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_121]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_121]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_121]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_121]
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:302) ~[server.jar:git-Spigot-96235ab-dfee3d9]
	... 15 more