killreward error

2013-10-10 11:34:05 [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.TimedRegisteredListener.callEvent(TimedRegisteredListener.java:30)
	at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:478)
	at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:463)
	at org.bukkit.craftbukkit.v1_6_R3.event.CraftEventFactory.callPlayerDeathEvent(CraftEventFactory.java:361)
	at net.minecraft.server.v1_6_R3.EntityPlayer.die(EntityPlayer.java:328)
	at net.minecraft.server.v1_6_R3.EntityLiving.damageEntity(EntityLiving.java:717)
	at net.minecraft.server.v1_6_R3.EntityHuman.damageEntity(EntityHuman.java:719)
	at net.minecraft.server.v1_6_R3.EntityPlayer.damageEntity(EntityPlayer.java:399)
	at org.bukkit.craftbukkit.v1_6_R3.entity.CraftLivingEntity.damage(CraftLivingEntity.java:197)
	at org.bukkit.craftbukkit.v1_6_R3.entity.CraftLivingEntity.damage(CraftLivingEntity.java:182)
	at fr.neatmonster.nocheatplus.compat.BridgeHealth.damage(BridgeHealth.java:176)
	at fr.neatmonster.nocheatplus.compat.bukkit.MCAccessBukkit.dealFallDamage(MCAccessBukkit.java:143)
	at fr.neatmonster.nocheatplus.checks.moving.NoFall.dealFallDamage(NoFall.java:87)
	at fr.neatmonster.nocheatplus.checks.moving.NoFall.handleOnGround(NoFall.java:63)
	at fr.neatmonster.nocheatplus.checks.moving.NoFall.check(NoFall.java:155)
	at fr.neatmonster.nocheatplus.checks.moving.MovingListener.onPlayerMove(MovingListener.java:600)
	at sun.reflect.GeneratedMethodAccessor11.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:425)
	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.server.v1_6_R3.PlayerConnection.a(PlayerConnection.java:227)
	at net.minecraft.server.v1_6_R3.Packet10Flying.handle(SourceFile:136)
	at org.spigotmc.netty.NettyNetworkManager.b(NettyNetworkManager.java:230)
	at net.minecraft.server.v1_6_R3.PlayerConnection.e(PlayerConnection.java:116)
	at net.minecraft.server.v1_6_R3.ServerConnection.b(SourceFile:37)
	at org.spigotmc.netty.NettyServerConnection.b(NettyServerConnection.java:132)
	at net.minecraft.server.v1_6_R3.MinecraftServer.t(MinecraftServer.java:594)
	at net.minecraft.server.v1_6_R3.DedicatedServer.t(DedicatedServer.java:240)
	at net.minecraft.server.v1_6_R3.MinecraftServer.s(MinecraftServer.java:483)
	at net.minecraft.server.v1_6_R3.MinecraftServer.run(MinecraftServer.java:415)
	at net.minecraft.server.v1_6_R3.ThreadServerApplication.run(SourceFile:583)
Caused by: java.lang.NullPointerException
	at com.alexander9907.killreward.PlayerListener.onKill(PlayerListener.java:23)
	at sun.reflect.GeneratedMethodAccessor137.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:425)
	... 36 more