---- Minecraft Crash Report ----
// Don't do that.

Time: 10/12/13 5:44 PM
Description: Exception in server tick loop

java.lang.NullPointerException: Exception in server tick loop
	at ml.c(SourceFile:130)
	at net.minecraft.server.MinecraftServer.u(SourceFile:529)
	at le.u(SourceFile:259)
	at net.minecraft.server.MinecraftServer.t(SourceFile:441)
	at net.minecraft.server.MinecraftServer.run(SourceFile:358)
	at kt.run(SourceFile:617)


A detailed walkthrough of the error, its code path and all known details is as follows:
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-- System Details --
Details:
	Minecraft Version: 13w41b
	Operating System: Windows Server 2012 (amd64) version 6.2
	Java Version: 1.7.0_17, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 935528576 bytes (892 MB) / 1029046272 bytes (981 MB) up to 1029046272 bytes (981 MB)
	JVM Flags: 2 total; -Xmx1024M -Xms1024M
	AABB Pool Size: 500 (28000 bytes; 0 MB) allocated, 397 (22232 bytes; 0 MB) used
	IntCache: cache: 0, tcache: 0, allocated: 12, tallocated: 94
	Profiler Position: N/A (disabled)
	Vec3 Pool Size: 117 (6552 bytes; 0 MB) allocated, 79 (4424 bytes; 0 MB) used
	Player Count: 0 / 6; []
	Is Modded: Unknown (can't tell)
	Type: Dedicated Server (map_server.txt)