[MC 1.8.9] [CC 1.78] Game crashed from breaking advanced computer

Crash report

—- Minecraft Crash Report —-
WARNING: coremods are present:
CCLCorePlugin (CodeChickenLib-1.8-1.1.2.133-universal.jar)
TweaksLoadingPlugin (CCTweaks-1.8.9-0.3.0.2.jar)
Contact their authors BEFORE contacting forge
// Why is it breaking :(/>
Time: 5/03/16 3:19 PM
Description: Ticking block entity
java.lang.IllegalArgumentException: Cannot get property PropertyDirection{name=facing, clazz=class net.minecraft.util.EnumFacing, values=[north, south, west, east]} as it does not exist in BlockState{block=minecraft:air, properties=[]}
at net.minecraft.block.state.BlockState$StateImplementation.func_177229_b(BlockState.java:137)
at dan200.computercraft.shared.computer.blocks.TileComputer.getDirection(TileComputer.java:89)
at dan200.computercraft.shared.util.DirectionUtil.toLocal(DirectionUtil.java:54)
at dan200.computercraft.shared.computer.blocks.TileComputerBase.updateInput(TileComputerBase.java:324)
at dan200.computercraft.shared.computer.blocks.TileComputerBase.createServerComputer(TileComputerBase.java:440)
at dan200.computercraft.shared.computer.blocks.TileComputerBase.func_73660_a(TileComputerBase.java:203)
at net.minecraft.world.World.func_72939_s(World.java:1716)
at net.minecraft.world.WorldServer.func_72939_s(WorldServer.java:544)
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:701)
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:605)
at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:152)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:481)
at java.lang.Thread.run(Thread.java:745)

A detailed walkthrough of the error, its code path and all known details is as follows:
—————————————————————————————
– Head –
Stacktrace:
at net.minecraft.block.state.BlockState$StateImplementation.func_177229_b(BlockState.java:137)
at dan200.computercraft.shared.computer.blocks.TileComputer.getDirection(TileComputer.java:89)
at dan200.computercraft.shared.util.DirectionUtil.toLocal(DirectionUtil.java:54)
at dan200.computercraft.shared.computer.blocks.TileComputerBase.updateInput(TileComputerBase.java:324)
at dan200.computercraft.shared.computer.blocks.TileComputerBase.createServerComputer(TileComputerBase.java:440)
at dan200.computercraft.shared.computer.blocks.TileComputerBase.func_73660_a(TileComputerBase.java:203)
– Block entity being ticked –
Details:
Name: computer // dan200.computercraft.shared.computer.blocks.TileComputer
Block type: ID #0 (tile.air // net.minecraft.block.BlockAir)
Block data value: 0 / 0x0 / 0b0000
Block location: World: (-55,162,64), Chunk: (at 9,10,0 in -4,4; contains blocks -64,0,64 to -49,255,79), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511)
Actual block type: ID #0 (tile.air // net.minecraft.block.BlockAir)
Actual block data value: 0 / 0x0 / 0b0000
Stacktrace:
at net.minecraft.world.World.func_72939_s(World.java:1716)
at net.minecraft.world.WorldServer.func_72939_s(WorldServer.java:544)
– Affected level –
Details:
Level name: computercraft science
All players: 1 total; [EntityPlayerMP['Waitdev_'/10528088, l='computercraft science', x=-54.20, y=162.00, z=68.37]]
Chunk stats: ServerChunkCache: 489 Drop: 69
Level seed: 4736996829242543294
Level generator: ID 01 - flat, ver 0. Features enabled: true
Level generator options: 3;minecraft:bedrock,230*minecraft:stone,5*minecraft:dirt,minecraft:grass;3;biome_1,decoration,stronghold,mineshaft,dungeon
Level spawn location: 0.00,4.00,0.00 - World: (0,4,0), Chunk: (at 0,0,0 in 0,0; contains blocks 0,0,0 to 15,255,15), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
Level time: 2718770 game time, 2666730 day time
Level dimension: 0
Level storage version: 0x04ABD - Anvil
Level weather: Rain time: 117218 (now: false), thunder time: 16551 (now: false)
Level game mode: Game mode: creative (ID 1). Hardcore: false. Cheats: true
Stacktrace:
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:701)
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:605)
at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:152)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:481)
at java.lang.Thread.run(Thread.java:745)
– System Details –
Details:
Minecraft Version: 1.8.9
Operating System: Mac OS X (x86_64) version 10.11.1
Java Version: 1.8.0_74, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 475310320 bytes (453 MB) / 1060372480 bytes (1011 MB) up to 1060372480 bytes (1011 MB)
JVM Flags: 6 total; -Xmx1G -Xmx1G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M
IntCache: cache: 0, tcache: 0, allocated: 13, tallocated: 95
FML: MCP 9.19 Powered by Forge 11.15.0.1684 8 mods loaded, 8 mods active
States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored
UCHIJAAAAAAAAAAAAAAAAAAA mcp{9.18} [Minecraft Coder Pack] (minecraft.jar)
UCHIJAAAAAAAAAAAAAAAAAAA FML{8.0.99.99} [Forge Mod Loader] (forge-1.8.9-11.15.0.1684.jar)
UCHIJAAAAAAAAAAAAAAAAAAA Forge{11.15.0.1684} [Minecraft Forge] (forge-1.8.9-11.15.0.1684.jar)
UCHIJAAAAAAAAAAAAAAAAAAA <CCTweaks ASM>{0.3.0.2} [<CCTweaks ASM>] (minecraft.jar)
UCHIJAAAAAAAAAAAAAAAAAAA ComputerCraft{1.78} [ComputerCraft] (ComputerCraft1.78.jar)
UCHIJAAAAAAAAAAAAAAAAAAA CCTweaks{0.3.0.2} [CCTweaks] (CCTweaks-1.8.9-0.3.0.2.jar)
UCHIJAAAAAAAAAAAAAAAAAAA CreativePeripheral{1.0} [Creative Peripheral] (CreativePeripheral.mc.1.8.9-1.0.jar)
UCHIJAAAAAAAAAAAAAAAAAAA worldedit{6.1.1} [WorldEdit] (worldedit-forge-mc1.8.9-6.1.1(1).jar)
Loaded coremods (and transformers):
CCLCorePlugin (CodeChickenLib-1.8-1.1.2.133-universal.jar)
codechicken.lib.asm.ClassHeirachyManager
codechicken.lib.asm.RenderHookTransformer
TweaksLoadingPlugin (CCTweaks-1.8.9-0.3.0.2.jar)
org.squiddev.cctweaks.core.asm.ASMTransformer
Profiler Position: N/A (disabled)
Player Count: 1 / 8; [EntityPlayerMP['Waitdev_'/10528088, l='computercraft science', x=-54.20, y=162.00, z=68.37]]
Type: Integrated Server (map_client.txt)
Is Modded: Definitely; Client brand changed to 'fml,forge'

Mods

CCTweaks - Likely cause of crash
CreativePeripheral
Computercraft 1.78
Worldedit 6.1.1

I loaded up my world, and accidentally broke a computer which had a label on it. Then, minecraft crashed.

Try to re-create without CCTweaks installed, please.

I don't think this is CCTweaks' fault, but just in case could you upload the logs - just to let me check if anything is breaking.

The bug doesn't happen anymore; might of been a small gpu hiccup. Thanks for the suggestions anyway :)/>

Not a GPU problem, the report clearly says that it could not get the direction a block of air was facing. Hence it ticked a tileEntity "the computer in question" to find its direction.
instead it found an air block in its place. air is not a tileEntity with a direction tag. You basically managed to break the block right before computercraft was about to read the tileEntity info.
There was not any tileEntity info especially the data tag requested. computercraft had no exception for this fail. so it simply crashed.