2013-05-12 04:13:27 [SEVERE] Could not pass event InventoryCloseEvent to Essentials vPre2.11.1.2
org.bukkit.event.EventException
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:363)
	at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
	at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:479)
	at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:464)
	at net.minecraft.entity.player.EntityPlayer.func_70106_y(EntityPlayer.java:1537)
	at net.minecraft.world.World.func_72900_e(World.java:1798)
	at net.minecraft.server.management.ServerConfigurationManager.disconnect(ServerConfigurationManager.java:387)
	at net.minecraft.network.NetServerHandler.func_72515_a(NetServerHandler.java:945)
	at org.spigotmc.netty.NettyNetworkManager.func_74428_b(NettyNetworkManager.java:195)
	at net.minecraft.network.NetServerHandler.func_72570_d(NetServerHandler.java:213)
	at net.minecraft.network.NetworkListenThread.func_71747_b(NetworkListenThread.java:53)
	at org.spigotmc.netty.NettyServerConnection.func_71747_b(NettyServerConnection.java:68)
	at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:926)
	at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:324)
	at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:794)
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:678)
	at net.minecraft.server.ThreadMinecraftServer.run(SourceFile:573)
Caused by: java.lang.NullPointerException
	at com.earth2me.essentials.EssentialsPlayerListener.onInventoryCloseEvent(EssentialsPlayerListener.java:618)
	at sun.reflect.GeneratedMethodAccessor58.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:361)
	... 16 more