Crash

Minecraft Crash Report ----
// Who set us up the TNT?

Time: 23/07/14 18.40
Description: Tesselating block model

java.lang.IndexOutOfBoundsException: Index: 1, Size: 0
at java.util.ArrayList.rangeCheck(Unknown Source)
at java.util.ArrayList.get(Unknown Source)
at csu.b(SourceFile:88)
at chc.a(SourceFile:156)
at cjs.a(SourceFile:139)
at cjs.a(SourceFile:74)
at cjs.a(SourceFile:43)
at cjs.a(SourceFile:35)
at cjq.a(SourceFile:62)
at cmt.b(SourceFile:156)
at cmm.a(SourceFile:71)
at cmm.run(SourceFile:31)
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 java.util.ArrayList.rangeCheck(Unknown Source)
at java.util.ArrayList.get(Unknown Source)
at csu.b(SourceFile:88)
at chc.a(SourceFile:156)
at cjs.a(SourceFile:139)
at cjs.a(SourceFile:74)

– Block model being tesselated –
Details:
Block: minecraft:stone[variant=stone]
Block location: World: (244,53,826), Chunk: (at 4,3,10 in 15,51; contains blocks 240,0,816 to 255,255,831), Region: (0,1; contains chunks 0,32 to 31,63, blocks 0,0,512 to 511,255,1023)
Using AO: true
Stacktrace:
at cjs.a(SourceFile:43)
at cjs.a(SourceFile:35)

– Block being tesselated –
Details:
Block type: ID #1 (tile.stone // azs)
Block data value: 0 / 0x0 / 0b0000
Block location: World: (244,53,826), Chunk: (at 4,3,10 in 15,51; contains blocks 240,0,816 to 255,255,831), Region: (0,1; contains chunks 0,32 to 31,63, blocks 0,0,512 to 511,255,1023)
Stacktrace:
at cjq.a(SourceFile:62)
at cmt.b(SourceFile:156)
at cmm.a(SourceFile:71)
at cmm.run(SourceFile:31)
at java.lang.Thread.run(Unknown Source)

– System Details –
Details:
Minecraft Version: 14w30b
Operating System: Windows 7 (amd64) version 6.1
Java Version: 1.7.0_60, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 617786920 bytes (589 MB) / 1055391744 bytes (1006 MB) up to 1055391744 bytes (1006 MB)
JVM Flags: 4 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G -Xmx1g -Xms1g
IntCache: cache: 0, tcache: 0, allocated: 12, tallocated: 94