1.8 Minecraft open and crashes always

My error message

---- Minecraft Crash Report ----

// Surprise! Haha. Well, this is awkward.

Time: 20/05/15 14:43

Description: Initializing game

java.lang.RuntimeException: java.lang.IllegalStateException: From thread Thread[Client thread,5,main]: Thread[Thread-12,5,] already has the context current

at net.minecraftforge.fml.client.SplashProgress.finish(SplashProgress.java:532)

at net.minecraftforge.fml.client.FMLClientHandler.onInitializationComplete(FMLClientHandler.java:405)

at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:513)

at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:325)

at net.minecraft.client.main.Main.main(SourceFile:120)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

at java.lang.reflect.Method.invoke(Method.java:597)

at net.minecraft.launchwrapper.Launch.launch(Launch.java:135)

at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

Caused by: java.lang.IllegalStateException: From thread Thread[Client thread,5,main]: Thread[Thread-12,5,] already has the context current

at org.lwjgl.opengl.ContextGL.checkAccess(ContextGL.java:184)

at org.lwjgl.opengl.ContextGL.makeCurrent(ContextGL.java:189)

at org.lwjgl.opengl.DrawableGL.makeCurrent(DrawableGL.java:110)

at net.minecraftforge.fml.client.SplashProgress.finish(SplashProgress.java:524)

... 10 more

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

---------------------------------------------------------------------------------------

-- Head --

Stacktrace:

at net.minecraftforge.fml.client.SplashProgress.finish(SplashProgress.java:532)

at net.minecraftforge.fml.client.FMLClientHandler.onInitializationComplete(FMLClientHandler.java:405)

at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:513)

-- Initialization --

Details:

Stacktrace:

at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:325)

at net.minecraft.client.main.Main.main(SourceFile:120)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

at java.lang.reflect.Method.invoke(Method.java:597)

at net.minecraft.launchwrapper.Launch.launch(Launch.java:135)

at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

-- System Details --

Details:

Minecraft Version: 1.8

Operating System: Mac OS X (x86_64) version 10.7.5

Java Version: 1.6.0_65, Apple Inc.

Java VM Version: Java HotSpot 64-Bit Server VM (mixed mode), Apple Inc.

Memory: 136383368 bytes (130 MB) / 427446272 bytes (407 MB) up to 1060372480 bytes (1011 MB)

JVM Flags: 5 total; -Xmx1G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M

IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0

FML: MCP v9.10 FML v8.99.4.1410 Minecraft Forge 11.14.1.1410 3 mods loaded, 3 mods active

mcp{9.05} [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available

FML{8.99.4.1410} [Forge Mod Loader] (forge-1.8-11.14.1.1410.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available

Forge{11.14.1.1410} [Minecraft Forge] (forge-1.8-11.14.1.1410.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available

Loaded coremods (and transformers):

GL info: ~~ERROR~~ RuntimeException: No OpenGL context found in the current thread.

Launched Version: 1.8-Forge11.14.1.1410

LWJGL: 2.9.2

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 ARB_framebuffer_object 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: Definitely; Client brand changed to 'fml,forge'

Type: Client (map_client.txt)

Resource Packs: [CrypticPvP Pack]

Current Language: Français (France)

Profiler Position: N/A (disabled)

Thanks