2013-08-05 09:12:06 [SEVERE] Could not pass event PlayerDeathEvent to Killreward v1.6.5
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_6_R2.event.CraftEventFactory.callPlayerDeathEvent(CraftEventFactory.java:346)
	at net.minecraft.server.v1_6_R2.EntityPlayer.die(EntityPlayer.java:307)
	at net.minecraft.server.v1_6_R2.EntityLiving.damageEntity(EntityLiving.java:709)
	at net.minecraft.server.v1_6_R2.EntityHuman.damageEntity(EntityHuman.java:714)
	at net.minecraft.server.v1_6_R2.EntityPlayer.damageEntity(EntityPlayer.java:378)
	at net.minecraft.server.v1_6_R2.EntityLiving.b(EntityLiving.java:850)
	at net.minecraft.server.v1_6_R2.EntityHuman.b(EntityHuman.java:1305)
	at net.minecraft.server.v1_6_R2.Entity.a(Entity.java:771)
	at net.minecraft.server.v1_6_R2.EntityLiving.a(EntityLiving.java:136)
	at net.minecraft.server.v1_6_R2.EntityPlayer.b(EntityPlayer.java:487)
	at net.minecraft.server.v1_6_R2.PlayerConnection.a(PlayerConnection.java:419)
	at net.minecraft.server.v1_6_R2.Packet10Flying.handle(SourceFile:136)
	at net.minecraft.server.v1_6_R2.NetworkManager.b(NetworkManager.java:296)
	at net.minecraft.server.v1_6_R2.PlayerConnection.e(PlayerConnection.java:116)
	at net.minecraft.server.v1_6_R2.ServerConnection.b(SourceFile:37)
	at net.minecraft.server.v1_6_R2.DedicatedServerConnection.b(SourceFile:30)
	at net.minecraft.server.v1_6_R2.MinecraftServer.t(MinecraftServer.java:590)
	at net.minecraft.server.v1_6_R2.DedicatedServer.t(DedicatedServer.java:226)
	at net.minecraft.server.v1_6_R2.MinecraftServer.s(MinecraftServer.java:486)
	at net.minecraft.server.v1_6_R2.MinecraftServer.run(MinecraftServer.java:419)
	at net.minecraft.server.v1_6_R2.ThreadServerApplication.run(SourceFile:582)
Caused by: java.lang.NullPointerException
	at com.alexander9907.killreward.PlayerListener.onKill(PlayerListener.java:23)
	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)
	... 24 more