Time: 11/6/12 3:00 PM
Description: Exception in server tick loop

java.lang.NullPointerException
	at net.minecraft.server.WorldServer.getTileEntities(WorldServer.java:570)
	at net.minecraft.server.PlayerInstance.a(PlayerInstance.java:109)
	at net.minecraft.server.PlayerManager.flush(PlayerManager.java:40)
	at net.minecraft.server.WorldServer.doTick(WorldServer.java:176)
	at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:542)
	at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:213)
	at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:475)
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:406)
	at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)

Only thing related to a plugin in the stack trace (the others are thing from the server):

[+] 2012-11-06 15:03:37 [SEVERE] com.lishid.orebfuscator.threading.ChunkCompressionThread.run(ChunkCompressionThread.java:149)
[+] 2012-11-06 15:03:37 [SEVERE] java.lang.Thread.sleep(Native Method)
[+] 2012-11-06 15:03:37 [SEVERE] Stack:
[+] 2012-11-06 15:03:37 [SEVERE] PID: 104 Alive: true State: TIMED_WAITING
[+] 2012-11-06 15:03:37 [SEVERE] Current Thread: Orebfuscator ChunkCompressionThread Thread
[+] 2012-11-06 15:03:37 [SEVERE] ------------------------------
[+] 2012-11-06 15:03:37 [SEVERE] com.lishid.orebfuscator.proximityhider.ProximityHider.run(ProximityHider.java:74)
[+] 2012-11-06 15:03:37 [SEVERE] java.lang.Thread.sleep(Native Method)
[+] 2012-11-06 15:03:37 [SEVERE] Stack:
[+] 2012-11-06 15:03:37 [SEVERE] PID: 28 Alive: true State: TIMED_WAITING
[+] 2012-11-06 15:03:37 [SEVERE] Current Thread: ProximityHider Thread