Game crashes with /fill command (Chuncks issues)

---- Minecraft Crash Report ----
// I let you down. Sorry :(

Time: 19/08/16 12:47 PM
Description: Batching chunks

java.lang.ArrayIndexOutOfBoundsException: 8202
	at ChunkCacheOF.o(ChunkCacheOF.java:97)
	at bqc.b(RenderChunk.java:201)
	at bpy.a(ChunkRenderWorker.java:118)
	at bpy.run(ChunkRenderWorker.java:46)
	at java.lang.Thread.run(Unknown Source)


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

-- Head --
Thread: Client thread
Stacktrace:
	at ChunkCacheOF.o(ChunkCacheOF.java:97)

-- Affected level --
Details:
	Level name: MpServer
	All players: 1 total; [bmr['serivesmejia'/877344, l='MpServer', x=502.50, y=5.15, z=-1174.50]]
	Chunk stats: MultiplayerChunkCache: 46, 46
	Level seed: 0
	Level generator: ID 01 - flat, ver 0. Features enabled: false
	Level generator options: 
	Level spawn location: World: (488,4,-1134), Chunk: (at 8,0,2 in 30,-71; contains blocks 480,0,-1136 to 495,255,-1121), Region: (0,-3; contains chunks 0,-96 to 31,-65, blocks 0,0,-1536 to 511,255,-1025)
	Level time: 107615 game time, 579 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: spectator (ID 3). Hardcore: false. Cheats: false
	Forced entities: 2 total; [bmr['serivesmejia'/877344, l='MpServer', x=467.16, y=8.52, z=-1203.49], bmr['serivesmejia'/877344, l='MpServer', x=502.50, y=5.15, z=-1174.50]]
	Retry entities: 0 total; []
	Server brand: vanilla
	Server type: Integrated singleplayer server
Stacktrace:
	at bks.a(WorldClient.java:490)
	at bcd.b(SourceFile:2521)
	at bpy.run(ChunkRenderWorker.java:56)
	at java.lang.Thread.run(Unknown Source)

-- System Details --
Details:
	Minecraft Version: 1.9.4
	Operating System: Windows 8.1 (x86) version 6.3
	Java Version: 1.7.0_79, Oracle Corporation
	Java VM Version: Java HotSpot(TM) Client VM (mixed mode), Oracle Corporation
	Memory: 30508952 bytes (29 MB) / 251695104 bytes (240 MB) up to 1064304640 bytes (1015 MB)
	JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1050M
	IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
	Launched Version: 1.9.4-OptiFine_HD_U_B5
	LWJGL: 2.9.4
	OpenGL: ~~ERROR~~ RuntimeException: No OpenGL context found in the current thread.
	GL Caps: Using GL 1.3 multitexturing.
Using GL 1.3 texture combiners.
Using framebuffer objects because OpenGL 3.0 is supported and separate blending is supported.
Shaders are available because OpenGL 2.1 is supported.
VBOs are available because OpenGL 1.5 is supported.

	Using VBOs: No
	Is Modded: Very likely; Jar signature invalidated
	Type: Client (map_client.txt)
	Resource Packs: 
	Current Language: Español (México)
	Profiler Position: N/A (disabled)
	CPU: bcd$7@1ed7479
	OptiFine Version: OptiFine_1.9.4_HD_U_B5
	Render Distance Chunks: 3
	Mipmaps: 4
	Anisotropic Filtering: 1
	Antialiasing: 0
	Multitexture: false
	Shaders: null
	OpenGlVersion: 4.2.12422 Compatibility Profile Context 13.152.1.3000
	OpenGlRenderer: AMD Radeon HD 8240
	OpenGlVendor: ATI Technologies Inc.
	CpuCount: 2