21:44:43 [WARNING] Failed to handle packet: java.lang.NullPointerException
java.lang.NullPointerException
        at forge.bukkit.ModInventoryView.getBottomInventory(ModInventoryView.java:29)
        at org.bukkit.inventory.InventoryView.countSlots(InventoryView.java:179)
        at org.bukkit.craftbukkit.inventory.CraftInventoryView.getSlotType(CraftInventoryView.java:113)
        at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:1167)
        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:121)
        at net.minecraft.server.NetworkListenThread.a(NetworkListenThread.java:78)
        at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:556)
        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:453)
        at net.minecraft.server.ThreadServerApplication.run(SourceFile:492)