>01:02:16 [SEVERE] Could not pass event InventoryClickEvent to ServerHub v1.1
org.bukkit.event.EventException
at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:427)
at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
at net.minecraft.server.v1_6_R2.PlayerConnection.a(PlayerConnection.java:1372)
at net.minecraft.server.v1_6_R2.Packet102WindowClick.handle(SourceFile:31)
at net.minecraft.server.v1_6_R2.NetworkManager.b(NetworkManager.java:296)
at net.minecraft.server.v1_6_R2.PlayerConnection.e(PlayerConnection.java:116)
at net.minecraft.server.v1_6_R2.ServerConnection.b(SourceFile:37)
at net.minecraft.server.v1_6_R2.DedicatedServerConnection.b(SourceFile:30)
at net.minecraft.server.v1_6_R2.MinecraftServer.t(MinecraftServer.java:590)
at net.minecraft.server.v1_6_R2.DedicatedServer.t(DedicatedServer.java:226)
at net.minecraft.server.v1_6_R2.MinecraftServer.s(MinecraftServer.java:486)
at net.minecraft.server.v1_6_R2.MinecraftServer.run(MinecraftServer.java:419)
at net.minecraft.server.v1_6_R2.ThreadServerApplication.run(SourceFile:582)
Caused by: java.lang.IllegalArgumentException: CommandLine cannot be null
at org.apache.commons.lang.Validate.notNull(Validate.java:203)
at org.bukkit.craftbukkit.v1_6_R2.CraftServer.dispatchCommand(CraftServer.java:521)
at org.bukkit.craftbukkit.v1_6_R2.entity.CraftPlayer.performCommand(CraftPlayer.java:244)
at me.KeybordPiano459.ServerHub.ServerHub$1.onOptionClick(ServerHub.java:43)
at me.KeybordPiano459.ServerHub.IconMenu.onInventoryClick(IconMenu.java:62)
at sun.reflect.GeneratedMethodAccessor211.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:425)
... 14 more