---- Minecraft Crash Report ----
// Hi. I'm Minecraft, and I'm a crashaholic.

Time: 06.03.14 16:03
Description: Exception in server tick loop

java.lang.NullPointerException: Exception in server tick loop
	at pe.a(SourceFile:287)
	at my.aF(SourceFile:426)
	at my.g(SourceFile:145)
	at net.minecraft.server.MinecraftServer.run(SourceFile:367)
	at mp.run(SourceFile:667)


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: 14w10a
	Operating System: Windows 7 (amd64) version 6.1
	Java Version: 1.7.0_25, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 444427816 bytes (423 MB) / 514523136 bytes (490 MB) up to 954466304 bytes (910 MB)
	JVM Flags: 2 total; -Xms512M -Xmx1G
	IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
	Profiler Position: N/A (disabled)
	Is Modded: Unknown (can't tell)
	Type: Dedicated Server (map_server.txt)