nocheatclassic error

2012-08-16 22:37:08 [SEVERE] Could not pass event PlayerMoveEvent to NoCheat
org.bukkit.event.EventException
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
	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.NetServerHandler.a(NetServerHandler.java:213)
	at net.minecraft.serverhook.NetServerHandlerProxy.a(NetServerHandlerProxy.java:70)
	at net.minecraft.server.Packet10Flying.handle(SourceFile:136)
	at net.minecraft.server.NetworkManager.b(NetworkManager.java:281)
	at net.minecraft.server.NetServerHandler.d(NetServerHandler.java:109)
	at net.minecraft.server.ServerConnection.b(SourceFile:35)
	at net.minecraft.server.DedicatedServerConnection.b(SourceFile:30)
	at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:583)
	at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
	at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
	at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NoClassDefFoundError: Could not initialize class cc.co.evenprime.bukkit.nocheat.checks.CheckUtil
	at cc.co.evenprime.bukkit.nocheat.checks.moving.RunningCheck.check(RunningCheck.java:55)
	at cc.co.evenprime.bukkit.nocheat.checks.moving.MovingCheckListener.move(MovingCheckListener.java:230)
	at sun.reflect.GeneratedMethodAccessor32.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:330)
	... 15 more