Crash: Ticking block entity: Cannot get property bes {name=facing... as it does not exist in beb{block=minecraft:air...

I was playing on survival when my game crashed, this keeps happening to me. It takes me to the report and says this:

---- Minecraft Crash Report ----
// I'm sorry, Dave.

Time: 25/11/14 4:58 PM
Description: Ticking block entity

java.lang.IllegalArgumentException: Cannot get property bes{name=facing, clazz=class ej, values=[north, south, west, east]} as it does not exist in beb{block=minecraft:air, properties=[]}
	at bee.b(SourceFile:112)
	at awg.a(SourceFile:129)
	at bda.c(SourceFile:237)
	at aqr.i(SourceFile:1312)
	at qu.i(SourceFile:478)
	at net.minecraft.server.MinecraftServer.A(SourceFile:608)
	at net.minecraft.server.MinecraftServer.z(SourceFile:532)
	at cyk.z(SourceFile:155)
	at net.minecraft.server.MinecraftServer.run(SourceFile:448)
	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 bee.b(SourceFile:112)
	at awg.a(SourceFile:129)
	at bda.c(SourceFile:237)

-- Block entity being ticked --
Details:
	Name: Furnace // bda
	Block type: ID #0 (tile.air // asv)
	Block data value: 0 / 0x0 / 0b0000
	Block location: World: (636,52,232), Chunk: (at 12,3,8 in 39,14; contains blocks 624,0,224 to 639,255,239), Region: (1,0; contains chunks 32,0 to 63,31, blocks 512,0,0 to 1023,255,511)
	Actual block type: ID #0 (tile.air // asv)
	Actual block data value: 0 / 0x0 / 0b0000
Stacktrace:
	at aqr.i(SourceFile:1312)
	at qu.i(SourceFile:478)

-- Affected level --
Details:
	Level name: Survival 2.0
	All players: 1 total; [qx['MilesPrower11'/255, l='Survival 2.0', x=555.70, y=20.00, z=262.18]]
	Chunk stats: ServerChunkCache: 662 Drop: 0
	Level seed: -7671587377839083823
	Level generator: ID 04 - customized, ver 0. Features enabled: true
	Level generator options: {"coordinateScale":684.412,"heightScale":684.412,"lowerLimitScale":512.0,"upperLimitScale":512.0,"depthNoiseScaleX":200.0,"depthNoiseScaleZ":200.0,"depthNoiseScaleExponent":0.5,"mainNoiseScaleX":80.0,"mainNoiseScaleY":160.0,"mainNoiseScaleZ":80.0,"baseSize":8.5,"stretchY":12.0,"biomeDepthWeight":1.0,"biomeDepthOffset":0.0,"biomeScaleWeight":1.0,"biomeScaleOffset":0.0,"seaLevel":63,"useCaves":true,"useDungeons":true,"dungeonChance":33,"useStrongholds":true,"useVillages":true,"useMineShafts":true,"useTemples":true,"useMonuments":true,"useRavines":true,"useWaterLakes":true,"waterLakeChance":4,"useLavaLakes":true,"lavaLakeChance":80,"useLavaOceans":false,"fixedBiome":-1,"biomeSize":5,"riverSize":3,"dirtSize":38,"dirtCount":10,"dirtMinHeight":0,"dirtMaxHeight":256,"gravelSize":33,"gravelCount":8,"gravelMinHeight":0,"gravelMaxHeight":256,"graniteSize":33,"graniteCount":10,"graniteMinHeight":0,"graniteMaxHeight":80,"dioriteSize":33,"dioriteCount":10,"dioriteMinHeight":0,"dioriteMaxHeight":80,"andesiteSize":33,"andesiteCount":10,"andesiteMinHeight":0,"andesiteMaxHeight":80,"coalSize":17,"coalCount":20,"coalMinHeight":0,"coalMaxHeight":128,"ironSize":9,"ironCount":20,"ironMinHeight":0,"ironMaxHeight":64,"goldSize":9,"goldCount":2,"goldMinHeight":0,"goldMaxHeight":32,"redstoneSize":8,"redstoneCount":8,"redstoneMinHeight":0,"redstoneMaxHeight":16,"diamondSize":15,"diamondCount":1,"diamondMinHeight":0,"diamondMaxHeight":17,"lapisSize":7,"lapisCount":1,"lapisCenterHeight":16,"lapisSpread":16}
	Level spawn location: 533.00,64.00,199.00 - World: (533,64,199), Chunk: (at 5,4,7 in 33,12; contains blocks 528,0,192 to 543,255,207), Region: (1,0; contains chunks 32,0 to 63,31, blocks 512,0,0 to 1023,255,511)
	Level time: 215693 game time, 280910 day time
	Level dimension: 0
	Level storage version: 0x04ABD - Anvil
	Level weather: Rain time: 27637 (now: false), thunder time: 29602 (now: false)
	Level game mode: Game mode: survival (ID 0). Hardcore: false. Cheats: false
Stacktrace:
	at net.minecraft.server.MinecraftServer.A(SourceFile:608)
	at net.minecraft.server.MinecraftServer.z(SourceFile:532)
	at cyk.z(SourceFile:155)
	at net.minecraft.server.MinecraftServer.run(SourceFile:448)
	at java.lang.Thread.run(Unknown Source)

-- System Details --
Details:
	Minecraft Version: 1.8.1
	Operating System: Windows 7 (x86) version 6.1
	Java Version: 1.7.0_71, Oracle Corporation
	Java VM Version: Java HotSpot(TM) Client VM (mixed mode), Oracle Corporation
	Memory: 181168208 bytes (172 MB) / 461111296 bytes (439 MB) up to 523501568 bytes (499 MB)
	JVM Flags: 6 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx512M -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M
	IntCache: cache: 0, tcache: 0, allocated: 12, tallocated: 94
	Profiler Position: N/A (disabled)
	Player Count: 1 / 8; [qx['MilesPrower11'/255, l='Survival 2.0', x=555.70, y=20.00, z=262.18]]
	Type: Integrated Server (map_client.txt)
	Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.

This always happens and it makes me mad because it only happens when I play survival mode. Is it just me?