Minecraft crashes when joining a world in singleplayer

When I'm joining my survival world in singleplayer it downloads the terrain. Then it shows the world for like 0.10 seconds and Minecraft immediately crashes. Here's the crash report:

---- Minecraft Crash Report ----
// Hey, that tickles! Hehehe!

Time: 30.04.14 14:00
Description: Rendering entity in world

java.lang.NullPointerException: Rendering entity in world
	at cce.a(SourceFile:79)
	at cce.a(SourceFile:53)
	at cce.a(SourceFile:24)
	at cbt.a(SourceFile:219)
	at cbt.a(SourceFile:199)
	at cbt.a(SourceFile:176)
	at bxs.a(SourceFile:495)
	at bxl.a(SourceFile:1146)
	at bxl.b(SourceFile:937)
	at bjf.ai(SourceFile:828)
	at bjf.f(SourceFile:755)
	at net.minecraft.client.main.Main.main(SourceFile:121)


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

-- Head --
Stacktrace:
	at cce.a(SourceFile:79)
	at cce.a(SourceFile:53)
	at cce.a(SourceFile:24)

-- Entity being rendered --
Details:
	Entity Type: ItemFrame (uh)
	Entity ID: 275
	Entity Name: entity.ItemFrame.name
	Entity's Exact location: 582,97, 70,50, 280,50
	Entity's Block location: 582,00,70,00,280,00 - World: (582,70,280), Chunk: (at 6,4,8 in 36,17; contains blocks 576,0,272 to 591,255,287), Region: (1,0; contains chunks 32,0 to 63,31, blocks 512,0,0 to 1023,255,511)
	Entity's Momentum: 0,00, 0,00, 0,00
	Entity's Rider: ~~ERROR~~ NullPointerException: null
	Entity's Vehicle: ~~ERROR~~ NullPointerException: null

-- Renderer details --
Details:
	Assigned renderer: cce@4149888e
	Location: 2,48,-2,50,5,19 - World: (2,-3,5), Chunk: (at 2,-1,5 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)
	Rotation: 90.0
	Delta: 0.7221749
Stacktrace:
	at cbt.a(SourceFile:219)
	at cbt.a(SourceFile:199)
	at cbt.a(SourceFile:176)
	at bxs.a(SourceFile:495)
	at bxl.a(SourceFile:1146)

-- Affected level --
Details:
	Level name: MpServer
	All players: 1 total; [bxb['Rocky10112'/269, l='MpServer', x=580,49, y=73,00, z=275,31]]
	Chunk stats: MultiplayerChunkCache: 10, 10
	Level seed: 0
	Level generator: ID 00 - default, ver 1. Features enabled: false
	Level generator options: 
	Level spawn location: 250,00,64,00,215,00 - World: (250,64,215), Chunk: (at 10,4,7 in 15,13; contains blocks 240,0,208 to 255,255,223), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
	Level time: 2011490 game time, 67349 day time
	Level dimension: 0
	Level storage version: 0x00000 - Unknown?
	Level weather: Rain time: 0 (now: false), thunder time: 0 (now: false)
	Level game mode: Game mode: survival (ID 0). Hardcore: false. Cheats: false
	Forced entities: 29 total; [uh['entity.ItemFrame.name'/275, l='MpServer', x=582,97, y=70,50, z=280,50], uh['entity.ItemFrame.name'/274, l='MpServer', x=582,97, y=70,50, z=278,50], uh['entity.ItemFrame.name'/273, l='MpServer', x=577,03, y=71,50, z=275,50], uh['entity.ItemFrame.name'/272, l='MpServer', x=583,97, y=71,50, z=272,50], bxb['Rocky10112'/269, l='MpServer', x=580,49, y=73,00, z=275,31], uh['entity.ItemFrame.name'/395, l='MpServer', x=594,50, y=71,50, z=291,97], uh['entity.ItemFrame.name'/394, l='MpServer', x=595,50, y=72,50, z=295,97], uh['entity.ItemFrame.name'/393, l='MpServer', x=597,50, y=73,50, z=295,97], uh['entity.ItemFrame.name'/392, l='MpServer', x=599,50, y=72,50, z=295,97], uh['entity.ItemFrame.name'/397, l='MpServer', x=597,50, y=73,50, z=289,03], uh['entity.ItemFrame.name'/396, l='MpServer', x=600,50, y=71,50, z=291,97], uh['entity.ItemFrame.name'/387, l='MpServer', x=600,50, y=71,50, z=287,97], yc['Horse'/386, l='MpServer', x=593,88, y=70,00, z=286,69], yc['Horse'/385, l='MpServer', x=601,09, y=70,00, z=285,69], uh['entity.ItemFrame.name'/270, l='MpServer', x=577,03, y=71,50, z=279,50], yc['Horse'/391, l='MpServer', x=601,09, y=70,00, z=291,28], uh['entity.ItemFrame.name'/271, l='MpServer', x=583,97, y=71,50, z=277,50], yk['jeb_'/390, l='MpServer', x=594,44, y=70,00, z=290,34], uh['entity.ItemFrame.name'/389, l='MpServer', x=597,50, y=71,50, z=285,03], uh['entity.ItemFrame.name'/388, l='MpServer', x=594,50, y=71,50, z=287,97], uh['entity.ItemFrame.name'/372, l='MpServer', x=580,50, y=75,50, z=270,03], uh['entity.ItemFrame.name'/371, l='MpServer', x=577,03, y=71,50, z=271,50], uh['entity.ItemFrame.name'/370, l='MpServer', x=580,50, y=71,50, z=270,03], zy['Creeper'/356, l='MpServer', x=563,56, y=4,00, z=272,94], zy['Creeper'/357, l='MpServer', x=561,50, y=5,00, z=275,50], uh['entity.ItemFrame.name'/358, l='MpServer', x=563,97, y=66,50, z=303,50], uh['entity.ItemFrame.name'/359, l='MpServer', x=563,97, y=66,50, z=296,50], zy['Creeper'/355, l='MpServer', x=570,50, y=5,00, z=275,50], uh['entity.ItemFrame.name'/360, l='MpServer', x=560,50, y=64,50, z=296,03]]
	Retry entities: 0 total; []
	Server brand: vanilla
	Server type: Integrated singleplayer server
Stacktrace:
	at buw.a(SourceFile:308)
	at bjf.b(SourceFile:2069)
	at bjf.f(SourceFile:764)
	at net.minecraft.client.main.Main.main(SourceFile:121)

-- System Details --
Details:
	Minecraft Version: 14w18a
	Operating System: Mac OS X (x86_64) version 10.9.2
	Java Version: 1.6.0_65, Apple Inc.
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Apple Inc.
	Memory: 91719736 bytes (87 MB) / 291057664 bytes (277 MB) up to 1065025536 bytes (1015 MB)
	JVM Flags: 1 total; -Xmx1G
	IntCache: cache: 0, tcache: 0, allocated: 13, tallocated: 95
	Launched Version: 14w18a
	LWJGL: 2.9.1
	OpenGL: Intel HD Graphics 3000 OpenGL Engine GL version 2.1 INTEL-8.24.11, Intel Inc.
	GL Caps: Using GL 1.3 multitexturing.
Using GL 1.3 texture combiners.
Using framebuffer objects because ARB_framebuffer_object is supported and separate blending is supported.
Anisotropic filtering is supported and maximum anisotropy is 16.
Shaders are available because OpenGL 2.1 is supported.

	Is Modded: Probably not. Jar signature remains and client brand is untouched.
	Type: Client (map_client.txt)
	Resource Packs: [faithful32pack.zip]
	Current Language: English (UK)
	Profiler Position: N/A (disabled)
	Anisotropic Filtering: Off (1)