---- Minecraft Crash Report ----
// I bet Cylons wouldn't have this problem.

Time: 9-2-13 10:09
Description: Exception in server tick loop

java.lang.NullPointerException
	at cf.b(SourceFile:103)
	at cf.a(SourceFile:35)
	at iv.b(SourceFile:436)
	at gm.a(SourceFile:72)
	at bec.b(SourceFile:73)
	at net.minecraft.server.MinecraftServer.r(SourceFile:762)
	at net.minecraft.server.MinecraftServer.q(SourceFile:679)
	at bdz.q(SourceFile:117)
	at net.minecraft.server.MinecraftServer.run(SourceFile:613)
	at fy.run(SourceFile:849)


A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- System Details --
Details:
	Minecraft Version: 1.4.7
	Operating System: Windows 7 (x86) version 6.1
	Java Version: 1.6.0_31, Sun Microsystems Inc.
	Java VM Version: Java HotSpot(TM) Client VM (mixed mode), Sun Microsystems Inc.
	Memory: 269913872 bytes (257 MB) / 519110656 bytes (495 MB) up to 1037959168 bytes (989 MB)
	JVM Flags: 2 total; -Xms512m -Xmx1024m
	AABB Pool Size: 48480 (2714880 bytes; 2 MB) allocated, 48480 (2714880 bytes; 2 MB) used
	Suspicious classes: [com.pclewis.mcpatcher.MCPatcherUtils, Config, ChangeHandler, ...], [com.pclewis.mcpatcher.mod.Colorizer, BiomeHelper, Stub, ...]
	IntCache: cache: 2, tcache: 0, allocated: 1, tallocated: 63
	Profiler Position: N/A (disabled)
	Vec3 Pool Size: 6460 (361760 bytes; 0 MB) allocated, 6460 (361760 bytes; 0 MB) used
	Player Count: 0 / 8; []
	Type: Integrated Server (map_client.txt)
	Is Modded: Very likely; Jar signature invalidated