Bukkit

Occurs whenever I hit a mob. I have the mob damage checks turned off.

[SEVERE] Could not pass event EntityDamageByEntityEvent to NoFlyPvp v1.1.1 org.bukkit.event.EventException at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:427) 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.callEvent(CraftEventFactory.java:81) at org.bukkit.craftbukkit.v1_4_R1.event.CraftEventFactory.callEntityDamageEvent(CraftEventFactory.java:369) at org.bukkit.craftbukkit.v1_4_R1.event.CraftEventFactory.handleEntityDamageEvent(CraftEventFactory.java:391) at net.minecraft.server.v1_4_R1.EntityLiving.damageEntity(EntityLiving.java:686) at net.minecraft.server.v1_4_R1.EntityHuman.attack(EntityHuman.java:805) at net.minecraft.server.v1_4_R1.PlayerConnection.a(PlayerConnection.java:1116) at net.minecraft.server.v1_4_R1.Packet7UseEntity.handle(SourceFile:36) 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) Caused by: java.lang.NullPointerException at com.trifractalstudios.bukkit.noflypvp.EListener.onEntityDamage(EListener.java:132) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.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) ... 19 more