Minecraft Crash Report

Bonjour, quand je presse simultanément sur les touches F3 + C Minecraft crashe. Voici le crash report :
---- Minecraft Crash Report ----
// Surprise! Haha. Well, this is awkward.

Time: 27/07/16 17:16
Description: Manually triggered debug crash

java.lang.Throwable
at bcd.az(SourceFile:1701)
at bcd.t(SourceFile:1622)
at bcd.av(SourceFile:969)
at bcd.a(SourceFile:399)
at net.minecraft.client.main.Main.main(SourceFile:124)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:483)
at net.minecraft.launchwrapper.Launch.launch(Launch.java:131)
at net.minecraft.launchwrapper.Launch.main(Launch.java:27)


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

-- Head --
Thread: Client thread
Stacktrace:
at bcd.az(SourceFile:1701)

-- Affected level --
Details:
Level name: MpServer
All players: 1 total; [bmr['Zozo10'/0, l='MpServer', x=1397,38, y=43,60, z=-683,43]]
Chunk stats: MultiplayerChunkCache: 121, 121
Level seed: 0
Level generator: ID 01 - flat, ver 0. Features enabled: false
Level generator options:
Level spawn location: World: (1407,4,-683), Chunk: (at 15,0,5 in 87,-43; contains blocks 1392,0,-688 to 1407,255,-673), Region: (2,-2; contains chunks 64,-64 to 95,-33, blocks 1024,0,-1024 to 1535,255,-513)
Level time: 10066 game time, 10066 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: 1 total; [bmr['Zozo10'/0, l='MpServer', x=1397,38, y=43,60, z=-683,43]]
Retry entities: 0 total; []
Server brand: vanilla
Server type: Integrated singleplayer server
Stacktrace:
at bks.a(WorldClient.java:478)
at bcd.b(SourceFile:2521)
at bcd.a(SourceFile:408)
at net.minecraft.client.main.Main.main(SourceFile:124)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:483)
at net.minecraft.launchwrapper.Launch.launch(Launch.java:131)
at net.minecraft.launchwrapper.Launch.main(Launch.java:27)

-- System Details --
Details:
Minecraft Version: 1.9.4
Operating System: Windows 7 (amd64) version 6.1
Java Version: 1.8.0_25, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 220694504 bytes (210 MB) / 370683904 bytes (353 MB) up to 1060372480 bytes (1011 MB)
JVM Flags: 6 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
Launched Version: 1.9.4-OptiFine_HD_U_B4
LWJGL: 2.9.4
OpenGL: Intel(R) HD Graphics Family GL version 3.1.0 - Build 8.15.10.2462, Intel
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: Yes
Is Modded: Very likely; Jar signature invalidated
Type: Client (map_client.txt)
Resource Packs: §f§lMathoX Pack v4 1.10§0.zip
Current Language: Français (France)
Profiler Position: N/A (disabled)
CPU: bcd$7@28f9b308