2013-02-22 12:37:14 [SEVERE] Could not pass event PlayerDeathEvent to BattleCombatTag v1.1.0
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:479)
	at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:464)
	at org.bukkit.craftbukkit.v1_4_R1.event.CraftEventFactory.callPlayerDeathEvent(CraftEventFactory.java:332)
	at net.minecraft.server.v1_4_R1.EntityPlayer.die(EntityPlayer.java:257)
	at net.minecraft.server.v1_4_R1.EntityLiving.damageEntity(EntityLiving.java:771)
	at net.minecraft.server.v1_4_R1.EntityHuman.damageEntity(EntityHuman.java:618)
	at net.minecraft.server.v1_4_R1.EntityPlayer.damageEntity(EntityPlayer.java:310)
	at net.minecraft.server.v1_4_R1.EntityHuman.attack(EntityHuman.java:807)
	at net.minecraft.server.v1_4_R1.PlayerConnection.a(PlayerConnection.java:1134)
	at net.minecraft.server.v1_4_R1.Packet7UseEntity.handle(SourceFile:36)
	at org.spigotmc.netty.NettyNetworkManager.b(NettyNetworkManager.java:155)
	at net.minecraft.server.v1_4_R1.PlayerConnection.d(PlayerConnection.java:115)
	at net.minecraft.server.v1_4_R1.ServerConnection.b(SourceFile:39)
	at org.spigotmc.netty.NettyServerConnection.b(NettyServerConnection.java:66)
	at net.minecraft.server.v1_4_R1.MinecraftServer.r(MinecraftServer.java:590)
	at net.minecraft.server.v1_4_R1.DedicatedServer.r(DedicatedServer.java:224)
	at net.minecraft.server.v1_4_R1.MinecraftServer.q(MinecraftServer.java:485)
	at net.minecraft.server.v1_4_R1.MinecraftServer.run(MinecraftServer.java:420)
	at net.minecraft.server.v1_4_R1.ThreadServerApplication.run(SourceFile:849)
Caused by: java.lang.NullPointerException
	at com.lducks.combattag.PluginListener.onEntityDeath(PluginListener.java:159)
	at sun.reflect.GeneratedMethodAccessor112.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:425)
	... 20 more