---- Minecraft Crash Report ----
// Why did you do that?

Time: 12/4/15 12:47 PM
Description: Exception ticking world

java.lang.IllegalArgumentException: Cannot get property arh{name=half, clazz=class als$a, values=[top, bottom]} as it does not exist in aqv{block=minecraft:double_stone_slab, properties=[seamless, variant]}
	at aqv$a.c(SourceFile:165)
	at als.k(SourceFile:50)
	at aqv$a.q(SourceFile:388)
	at ahu.a(SourceFile:203)
	at ahu.a(SourceFile:132)
	at lp.d(SourceFile:198)
	at net.minecraft.server.MinecraftServer.D(SourceFile:617)
	at la.D(SourceFile:339)
	at net.minecraft.server.MinecraftServer.C(SourceFile:553)
	at net.minecraft.server.MinecraftServer.run(SourceFile:457)
	at java.lang.Thread.run(Unknown Source)


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

-- Head --
Stacktrace:
	at aqv$a.c(SourceFile:165)
	at als.k(SourceFile:50)
	at aqv$a.q(SourceFile:388)
	at ahu.a(SourceFile:203)
	at ahu.a(SourceFile:132)
	at lp.d(SourceFile:198)

-- Affected level --
Details:
	Level name: world
	All players: 1 total; [lr['RazzerOfficial'/240, l='world', x=-130.49, y=68.00, z=98.40]]
	Chunk stats: ServerChunkCache: 509 Drop: 0
	Level seed: -4883976071872022062
	Level generator: ID 00 - default, ver 1. Features enabled: true
	Level generator options: 
	Level spawn location: World: (-109,64,-12), Chunk: (at 3,4,4 in -7,-1; contains blocks -112,0,-16 to -97,255,-1), Region: (-1,-1; contains chunks -32,-32 to -1,-1, blocks -512,0,-512 to -1,255,-1)
	Level time: 8398636 game time, 1104 day time
	Level dimension: 0
	Level storage version: 0x04ABD - Anvil
	Level weather: Rain time: 92605 (now: false), thunder time: 113947 (now: false)
	Level game mode: Game mode: survival (ID 0). Hardcore: false. Cheats: false
Stacktrace:
	at net.minecraft.server.MinecraftServer.D(SourceFile:617)
	at la.D(SourceFile:339)
	at net.minecraft.server.MinecraftServer.C(SourceFile:553)
	at net.minecraft.server.MinecraftServer.run(SourceFile:457)
	at java.lang.Thread.run(Unknown Source)

-- System Details --
Details:
	Minecraft Version: 15w49a
	Operating System: Linux (amd64) version 2.6.32-5-openvz-amd64
	Java Version: 1.7.0_10, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 1160983016 bytes (1107 MB) / 1508900864 bytes (1439 MB) up to 3817799680 bytes (3640 MB)
	JVM Flags: 4 total; -Xmx4096M -Xms1512M -XX:PermSize=128m -XX:MaxPermSize=256m
	IntCache: cache: 0, tcache: 0, allocated: 12, tallocated: 94
	Profiler Position: N/A (disabled)
	Player Count: 1 / 64; [lr['RazzerOfficial'/240, l='world', x=-130.49, y=68.00, z=98.40]]
	Is Modded: Unknown (can't tell)
	Type: Dedicated Server (map_server.txt)