09:05 PM [SEVERE] Could not pass event PlayerInteractEvent to Feedback v0.1 
Caused by: java.lang.NullPointerException
	at me.ienze.Feedback.PlayersHandler.onOpenBlockInventory(PlayersHandler.java:69)
	at sun.reflect.GeneratedMethodAccessor376.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:425)
	at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
	at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
	at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
	at org.bukkit.craftbukkit.v1_4_R1.event.CraftEventFactory.callPlayerInteractEvent(CraftEventFactory.java:178)
	at net.minecraft.server.v1_4_R1.PlayerInteractManager.interact(PlayerInteractManager.java:376)
	at net.minecraft.server.v1_4_R1.PlayerConnection.a(PlayerConnection.java:657)
	at net.minecraft.server.v1_4_R1.Packet15Place.handle(SourceFile:58)
	at net.minecraft.server.v1_4_R1.Packet15Place$$EnhancerByCGLIB$$e032d523.CGLIB$handle$0(<generated>)
	at net.minecraft.server.v1_4_R1.Packet15Place$$EnhancerByCGLIB$$e032d523$$FastClassByCGLIB$$c027140.invoke(<generated>)
	at com.comphenix.net.sf.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:228)
	at com.comphenix.protocol.injector.packet.ReadPacketModifier.intercept(ReadPacketModifier.java:98)
	at net.minecraft.server.v1_4_R1.Packet15Place$$EnhancerByCGLIB$$e032d523.handle(<generated>)
	at net.minecraft.server.v1_4_R1.NetworkManager.b(NetworkManager.java:290)
	at net.minecraft.server.v1_4_R1.PlayerConnection.d(PlayerConnection.java:113)
	at net.minecraft.server.v1_4_R1.ServerConnection.b(SourceFile:39)
	at net.minecraft.server.v1_4_R1.DedicatedServerConnection.b(SourceFile:30)
	at net.minecraft.server.v1_4_R1.MinecraftServer.r(MinecraftServer.java:598)
	at net.minecraft.server.v1_4_R1.DedicatedServer.r(DedicatedServer.java:224)
	at net.minecraft.server.v1_4_R1.MinecraftServer.q(MinecraftServer.java:494)
	at net.minecraft.server.v1_4_R1.MinecraftServer.run(MinecraftServer.java:427)
	at net.minecraft.server.v1_4_R1.ThreadServerApplication.run(SourceFile:849)