Bukkit

12:00:53 [SEVERE] Could not pass event InventoryCreativeEvent to LoreLocks v2.2.0.1
org.bukkit.event.EventException
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:454)
        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
        at org.bukkit.plugin.TimedRegisteredListener.callEvent(TimedRegisteredListener.java:30)
        at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:478)
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:463)
        at net.minecraft.network.NetServerHandler.func_72464_a(NetServerHandler.java:2197)
        at net.minecraft.network.packet.Packet107CreativeSetSlot.func_73279_a(Packet107CreativeSetSlot.java:29)
        at net.minecraft.network.TcpConnection.func_74428_b(TcpConnection.java:469)
        at net.minecraft.network.NetServerHandler.func_72570_d(NetServerHandler.java:232)
        at net.minecraft.network.NetworkListenThread.func_71747_b(NetworkListenThread.java:54)
        at net.minecraft.server.dedicated.DedicatedServerListenThread.func_71747_b(DedicatedServerListenThread.java:34)
        at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:898)
        at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:328)
        at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:765)
        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:647)
        at net.minecraft.server.ThreadMinecraftServer.run(ThreadMinecraftServer.java:16)
Caused by: java.lang.NullPointerException
        at com.github.derwisch.loreLocks.LoreLocksListener.onInventoryClick_LockGUIClick(LoreLocksListener.java:233)
        at sun.reflect.GeneratedMethodAccessor167.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:452)
        ... 15 more