Could not pass event PlayerQuitEvent to InfightTracker v1.0
org.bukkit.event.EventException
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:310) ~[spigot_1.8.8_final.jar:git-Spigot-e4d4710-e1ebe52]
	at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[spigot_1.8.8_final.jar:git-Spigot-e4d4710-e1ebe52]
	at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:502) [spigot_1.8.8_final.jar:git-Spigot-e4d4710-e1ebe52]
	at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:487) [spigot_1.8.8_final.jar:git-Spigot-e4d4710-e1ebe52]
	at net.minecraft.server.v1_8_R3.PlayerList.disconnect(PlayerList.java:348) [spigot_1.8.8_final.jar:git-Spigot-e4d4710-e1ebe52]
	at net.minecraft.server.v1_8_R3.PlayerConnection.a(PlayerConnection.java:871) [spigot_1.8.8_final.jar:git-Spigot-e4d4710-e1ebe52]
	at net.minecraft.server.v1_8_R3.NetworkManager.l(NetworkManager.java:314) [spigot_1.8.8_final.jar:git-Spigot-e4d4710-e1ebe52]
	at net.minecraft.server.v1_8_R3.ServerConnection.c(ServerConnection.java:145) [spigot_1.8.8_final.jar:git-Spigot-e4d4710-e1ebe52]
	at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:814) [spigot_1.8.8_final.jar:git-Spigot-e4d4710-e1ebe52]
	at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_1.8.8_final.jar:git-Spigot-e4d4710-e1ebe52]
	at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_1.8.8_final.jar:git-Spigot-e4d4710-e1ebe52]
	at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_1.8.8_final.jar:git-Spigot-e4d4710-e1ebe52]
	at java.lang.Thread.run(Thread.java:745) [?:1.8.0_74]
Caused by: java.lang.NullPointerException
	at eu.mccluster.plugin.pvprewards.listener.PlayerListener.handlePlayerKilledEvent(PlayerListener.java:51) ~[?:?]
	at eu.mccluster.plugin.infighttracker.InfightTracker.handleDeath(InfightTracker.java:171) ~[?:?]
	at eu.mccluster.plugin.infighttracker.bukkit.PlayerListener.handlePlayerQuitEvent(PlayerListener.java:22) ~[?:?]
	at sun.reflect.GeneratedMethodAccessor654.invoke(Unknown Source) ~[?:?]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_74]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_74]
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:306) ~[spigot_1.8.8_final.jar:git-Spigot-e4d4710-e1ebe52]
	... 12 more