Minecraft has crashed!      
      ----------------------      

Minecraft has stopped running because it encountered a problem; Adding entity to track

A full error report has been saved to D:\Documents and Settings\Administrator\Application Data\.minecraft\crash-reports\crash-2013-02-02_20.17.19-server.txt - Please include a copy of that file (Not this screen!) if you report this crash to anyone; without it, they will not be able to help fix the crash :(



--- BEGIN ERROR REPORT 68b45720 --------
Full report at:
D:\Documents and Settings\Administrator\Application Data\.minecraft\crash-reports\crash-2013-02-02_20.17.19-server.txt
Please show that file to Mojang, NOT just this screen!

Generated 2/2/13 8:17 PM

-- Entity To Track --
Details:
	Tracking range: 64 blocks
	Update interval: Once per 20 ticks
	Entity Type: Item (qu)
	Entity ID: 400802
	Entity Name: item.tile.anvil.intact
	Entity's Exact location: 41.50, 22.49, -304.50
	Entity's Block location: World: (41,22,-305), Chunk: (at 9,1,15 in 2,-20; contains blocks 32,0,-320 to 47,255,-305), Region: (0,-1; contains chunks 0,-32 to 31,-1, blocks 0,0,-512 to 511,255,-1)
	Entity's Momentum: -0.10, 0.20, -0.08
Stacktrace:
	at it.a(SourceFile:76)
	at it.a(SourceFile:52)
	at iv.a(SourceFile:24)
	at zk.a(SourceFile:863)
	at iz.a(SourceFile:618)
	at zk.d(SourceFile:855)
	at mj.a(SourceFile:1069)
	at qt.l_(SourceFile:111)
	at zk.a(SourceFile:1332)
	at iz.a(SourceFile:491)
	at zk.g(SourceFile:1310)

-- Entity being ticked --
Details:
	Entity Type: FallingSand (qt)
	Entity ID: 394478
	Entity Name: Падащо блокче
	Entity's Exact location: 41.50, 22.49, -304.50
	Entity's Block location: World: (41,22,-305), Chunk: (at 9,1,15 in 2,-20; contains blocks 32,0,-320 to 47,255,-305), Region: (0,-1; contains chunks 0,-32 to 31,-1, blocks 0,0,-512 to 511,255,-1)
	Entity's Momentum: 0.00, -0.00, 0.00
	Immitating block ID: 145
	Immitating block data: 0
Stacktrace:
	at zk.h(SourceFile:1217)
	at iz.h(SourceFile:385)

-- Affected level --
Details:
	Level name: Bobi1
	All players: 1 total; [jc['Steve'/282566, l='Bobi1', x=-127.50, y=69.00, z=-193.50]]
	Chunk stats: ServerChunkCache: 625 Drop: 0
	Level seed: -1072522174480169863
	Level generator: ID 01 - flat, ver 0. Features enabled: true
	Level generator options: 2;7,59x145,8x49,2;1;stronghold,biome_1,village,decoration,dungeon,lake,mineshaft,lava_lake
	Level spawn location: World: (-119,4,-200), Chunk: (at 9,0,8 in -8,-13; contains blocks -128,0,-208 to -113,255,-193), Region: (-1,-1; contains chunks -32,-32 to -1,-1, blocks -512,0,-512 to -1,255,-1)
	Level time: 626 game time, 626 day time
	Level dimension: 0
	Level storage version: 0x04ABD - Anvil
	Level weather: Rain time: 123763 (now: false), thunder time: 173172 (now: false)
	Level game mode: Game mode: creative (ID 1). Hardcore: false. Cheats: true
Stacktrace:
	at net.minecraft.server.MinecraftServer.r(SourceFile:462)
	at net.minecraft.server.MinecraftServer.q(SourceFile:397)
	at bid.q(SourceFile:117)
	at net.minecraft.server.MinecraftServer.run(SourceFile:331)
	at gp.run(SourceFile:567)

-- System Details --
Details:
	Minecraft Version: 13w05b
	Operating System: Windows XP (amd64) version 5.2
	Java Version: 1.7.0_11, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 607806448 bytes (579 MB) / 1037959168 bytes (989 MB) up to 1037959168 bytes (989 MB)
	JVM Flags: 2 total; -Xms1024m -Xmx1024m
	AABB Pool Size: 13511 (756616 bytes; 0 MB) allocated, 1823 (102088 bytes; 0 MB) used
	Suspicious classes: _tmi_MgButtonHandler, _tmi_MgItemHandler, _tmi_MgFocusHandler, ...]
	IntCache: cache: 0, tcache: 3, allocated: 5, tallocated: 59
	Profiler Position: N/A (disabled)
	Vec3 Pool Size: 385 (21560 bytes; 0 MB) allocated, 343 (19208 bytes; 0 MB) used
	Player Count: 1 / 8; [jc['Steve'/282566, l='Bobi1', x=-127.50, y=69.00, z=-193.50]]
	Type: Integrated Server (map_client.txt)
	Is Modded: Very likely; Jar signature invalidated

java.lang.IllegalStateException: Entity is already tracked!
	at it.a(SourceFile:76)
	at it.a(SourceFile:52)
	at iv.a(SourceFile:24)
	at zk.a(SourceFile:863)
	at iz.a(SourceFile:618)
	at zk.d(SourceFile:855)
	at mj.a(SourceFile:1069)
	at qt.l_(SourceFile:111)
	at zk.a(SourceFile:1332)
	at iz.a(SourceFile:491)
	at zk.g(SourceFile:1310)
	at zk.h(SourceFile:1217)
	at iz.h(SourceFile:385)
	at net.minecraft.server.MinecraftServer.r(SourceFile:462)
	at net.minecraft.server.MinecraftServer.q(SourceFile:397)
	at bid.q(SourceFile:117)
	at net.minecraft.server.MinecraftServer.run(SourceFile:331)
	at gp.run(SourceFile:567)
--- END ERROR REPORT 48acbab2 ----------