[14:55:45] [Server thread/ERROR]: Could not pass event InventoryCloseEvent to CrazyCrates v1.6.0.1

org.bukkit.event.EventException

	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:310) ~[spigot-1.9.4.jar:git-Spigot-4af49dc-e22506f]

	at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[spigot-1.9.4.jar:git-Spigot-4af49dc-e22506f]

	at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:502) [spigot-1.9.4.jar:git-Spigot-4af49dc-e22506f]

	at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:487) [spigot-1.9.4.jar:git-Spigot-4af49dc-e22506f]

	at org.bukkit.craftbukkit.v1_9_R2.event.CraftEventFactory.handleInventoryCloseEvent(CraftEventFactory.java:871) [spigot-1.9.4.jar:git-Spigot-4af49dc-e22506f]

	at net.minecraft.server.v1_9_R2.PlayerConnection.a(PlayerConnection.java:1627) [spigot-1.9.4.jar:git-Spigot-4af49dc-e22506f]

	at net.minecraft.server.v1_9_R2.PacketPlayInCloseWindow.a(PacketPlayInCloseWindow.java:18) [spigot-1.9.4.jar:git-Spigot-4af49dc-e22506f]

	at net.minecraft.server.v1_9_R2.PacketPlayInCloseWindow.a(PacketPlayInCloseWindow.java:1) [spigot-1.9.4.jar:git-Spigot-4af49dc-e22506f]

	at net.minecraft.server.v1_9_R2.PlayerConnectionUtils$1.run(SourceFile:13) [spigot-1.9.4.jar:git-Spigot-4af49dc-e22506f]

	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_72]

	at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_72]

	at net.minecraft.server.v1_9_R2.SystemUtils.a(SourceFile:45) [spigot-1.9.4.jar:git-Spigot-4af49dc-e22506f]

	at net.minecraft.server.v1_9_R2.MinecraftServer.D(MinecraftServer.java:726) [spigot-1.9.4.jar:git-Spigot-4af49dc-e22506f]

	at net.minecraft.server.v1_9_R2.DedicatedServer.D(DedicatedServer.java:399) [spigot-1.9.4.jar:git-Spigot-4af49dc-e22506f]

	at net.minecraft.server.v1_9_R2.MinecraftServer.C(MinecraftServer.java:665) [spigot-1.9.4.jar:git-Spigot-4af49dc-e22506f]

	at net.minecraft.server.v1_9_R2.MinecraftServer.run(MinecraftServer.java:564) [spigot-1.9.4.jar:git-Spigot-4af49dc-e22506f]

	at java.lang.Thread.run(Thread.java:745) [?:1.8.0_72]

Caused by: java.lang.NullPointerException

	at me.BadBones69.CrazyCrates.CrateTypes.Cosmic.onInvClose(Cosmic.java:183) ~[?:?]

	at sun.reflect.GeneratedMethodAccessor1176.invoke(Unknown Source) ~[?:?]

	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_72]

	at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_72]

	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:306) ~[spigot-1.9.4.jar:git-Spigot-4af49dc-e22506f]

	... 16 more