14:40:25 [SEVERE] Could not pass event InventoryClickEvent to InventoryListener
org.bukkit.event.EventException
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.ja
va:303)
        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.jav
a:62)
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.j
ava:441)
        at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:1165)
        at net.minecraft.server.Packet102WindowClick.handle(SourceFile:28)
        at net.minecraft.server.NetworkManager.b(NetworkManager.java:234)
        at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:118)
        at net.minecraft.server.NetworkListenThread.a(NetworkListenThread.java:7
8)
        at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:557)
        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:455)
        at net.minecraft.server.ThreadServerApplication.run(SourceFile:490)
Caused by: java.lang.NullPointerException
        at net.minecraft.server.InventoryCrafting.getOwner(InventoryCrafting.jav
a:47)
        at org.bukkit.craftbukkit.inventory.CraftInventory.getHolder(CraftInvent
ory.java:413)
        at com.gmail.brkich.austin.InventoryListener.InventoryClick.InventoryCha
nge(InventoryClick.java:20)