playermoveevent bug myz

2013-04-20 17:40:52 [SEVERE] Could not pass event PlayerMoveEvent to MyZ v0.5.3
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 net.minecraft.server.v1_5_R2.PlayerConnection.a(PlayerConnection.java:217)
	at net.minecraft.server.v1_5_R2.Packet10Flying.handle(SourceFile:136)
	at net.minecraft.server.v1_5_R2.NetworkManager.b(NetworkManager.java:292)
	at net.minecraft.server.v1_5_R2.PlayerConnection.d(PlayerConnection.java:110)
	at net.minecraft.server.v1_5_R2.ServerConnection.b(SourceFile:35)
	at net.minecraft.server.v1_5_R2.DedicatedServerConnection.b(SourceFile:30)
	at net.minecraft.server.v1_5_R2.MinecraftServer.r(MinecraftServer.java:580)
	at net.minecraft.server.v1_5_R2.DedicatedServer.r(DedicatedServer.java:225)
	at net.minecraft.server.v1_5_R2.MinecraftServer.q(MinecraftServer.java:476)
	at net.minecraft.server.v1_5_R2.MinecraftServer.run(MinecraftServer.java:409)
	at net.minecraft.server.v1_5_R2.ThreadServerApplication.run(SourceFile:573)
Caused by: java.lang.NullPointerException
	at com.jordair.gmail.MyZ.utils.Utils.color(Utils.java:383)
	at com.jordair.gmail.MyZ.Listeners.moveListener.onMove(moveListener.java:47)
	at sun.reflect.GeneratedMethodAccessor20.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)
	... 14 more