[MC-40774] The game crashed when I was streaming

I was streaming then the game crashed.. Here is the report in the console:
---- Minecraft Crash Report ----
// Ooh. Shiny.

Time: 11/23/13 2:33 PM
Description: Trying to submit a frame to Twitch

java.lang.NullPointerException: Trying to submit a frame to Twitch
	at tv.twitch.broadcast.Stream.captureFrameBuffer_ReadPixels(Stream.java:182)
	at bui.a(SourceFile:1432)
	at buw.k(SourceFile:248)
	at azg.ag(SourceFile:807)
	at azg.e(SourceFile:686)
	at net.minecraft.client.main.Main.main(SourceFile:151)


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

-- Head --
Stacktrace:
	at tv.twitch.broadcast.Stream.captureFrameBuffer_ReadPixels(Stream.java:182)

-- Broadcast State --
Details:
	Last reported error: Out of free buffers, this should never happen
	Buffer: ~~NULL~~
Stacktrace:
	at bui.a(SourceFile:1432)

-- Affected level --
Details:
	Level name: MpServer
	All players: 1 total; [bjz['Keith_is_awesome'/4374, l='MpServer', x=-0.41, y=238.62, z=2.59]]
	Chunk stats: MultiplayerChunkCache: 289, 289
	Level seed: 0
	Level generator: ID 01 - flat, ver 0. Features enabled: false
	Level generator options: 
	Level spawn location: 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: 42282 game time, 17278 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: creative (ID 1). Hardcore: false. Cheats: false
	Forced entities: 5 total; [vd['Pig'/10424, l='MpServer', x=-41.88, y=237.00, z=0.81], vd['Pig'/10425, l='MpServer', x=-37.84, y=237.00, z=24.28], vd['Pig'/10426, l='MpServer', x=-38.03, y=237.00, z=15.97], vd['Pig'/10429, l='MpServer', x=-29.06, y=237.00, z=-33.03], bjz['Keith_is_awesome'/4374, l='MpServer', x=-0.41, y=238.62, z=2.59]]
	Retry entities: 0 total; []
	Server brand: vanilla
	Server type: Integrated singleplayer server
Stacktrace:
	at bju.a(SourceFile:284)
	at azg.b(SourceFile:1938)
	at azg.e(SourceFile:695)
	at net.minecraft.client.main.Main.main(SourceFile:151)

-- System Details --
Details:
	Minecraft Version: 13w47e
	Operating System: Windows 7 (x86) version 6.1
	Java Version: 1.7.0_45, Oracle Corporation
	Java VM Version: Java HotSpot(TM) Client VM (mixed mode, sharing), Oracle Corporation
	Memory: 173005616 bytes (164 MB) / 518979584 bytes (494 MB) up to 518979584 bytes (494 MB)
	JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx512M
	AABB Pool Size: 92 (5152 bytes; 0 MB) allocated, 5 (280 bytes; 0 MB) used
	IntCache: cache: 0, tcache: 0, allocated: 13, tallocated: 95
	Launched Version: 13w47e
	LWJGL: 2.9.1
	OpenGL: AMD Radeon HD 6570 GL version 4.2.12217 Compatibility Profile Context 12.104.0.0, ATI Technologies Inc.
	Is Modded: Probably not. Jar signature remains and client brand is untouched.
	Type: Client (map_client.txt)
	Resource Packs: []
	Current Language: English (US)
	Profiler Position: N/A (disabled)
	Vec3 Pool Size: 71 (3976 bytes; 0 MB) allocated, 33 (1848 bytes; 0 MB) used
	Anisotropic Filtering: Off (1)