Crash au lancement d'un monde

Salut a tous j'ai besoin d'aide car cet après midi, je n'arrivais plus a me connecter sur les serveurs et quand je lance un monde solo, mon minecraft crash. Je tiens a préciser que je suis sur le launcheur team-extreme et que forge est installer. Je vous copie-colle le crash report :

---- Minecraft Crash Report ----
// Uh... Did I do that?

Time: 18/10/14 18:47
Description: Starting integrated server

java.lang.ExceptionInInitializerError
at net.minecraft.server.MinecraftServer.<init>(SourceFile:120)
at bsx.<init>(SourceFile:38)
at bao.a(SourceFile:1610)
at bdx.e(SourceFile:162)
at bdy.a(SourceFile:214)
at bcm.a(SourceFile:186)
at bdx.a(SourceFile:187)
at blt.b(SourceFile:852)
at bao.ak(SourceFile:801)
at bao.f(SourceFile:728)
at net.minecraft.client.main.Main.main(SourceFile:148)
Caused by: java.lang.IllegalStateException: failed to create a child event loop
at io.netty.util.concurrent.MultithreadEventExecutorGroup.<init>(MultithreadEventExecutorGroup.java:61)
at io.netty.channel.MultithreadEventLoopGroup.<init>(MultithreadEventLoopGroup.java:49)
at io.netty.channel.nio.NioEventLoopGroup.<init>(NioEventLoopGroup.java:61)
at io.netty.channel.nio.NioEventLoopGroup.<init>(NioEventLoopGroup.java:52)
at nc.<clinit>(SourceFile:31)
... 11 more
Caused by: io.netty.channel.ChannelException: failed to open a new selector
at io.netty.channel.nio.NioEventLoop.openSelector(NioEventLoop.java:128)
at io.netty.channel.nio.NioEventLoop.<init>(NioEventLoop.java:120)
at io.netty.channel.nio.NioEventLoopGroup.newChild(NioEventLoopGroup.java:87)
at io.netty.util.concurrent.MultithreadEventExecutorGroup.<init>(MultithreadEventExecutorGroup.java:57)
... 15 more
Caused by: java.io.IOException: Unable to establish loopback connection
at sun.nio.ch.PipeImpl$Initializer.run(Unknown Source)
at sun.nio.ch.PipeImpl$Initializer.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at sun.nio.ch.PipeImpl.<init>(Unknown Source)
at sun.nio.ch.SelectorProviderImpl.openPipe(Unknown Source)
at java.nio.channels.Pipe.open(Unknown Source)
at sun.nio.ch.WindowsSelectorImpl.<init>(Unknown Source)
at sun.nio.ch.WindowsSelectorProvider.openSelector(Unknown Source)
at io.netty.channel.nio.NioEventLoop.openSelector(NioEventLoop.java:126)
... 18 more
Caused by: java.net.ConnectException: Connection refused: connect
at sun.nio.ch.Net.connect0(Native Method)
at sun.nio.ch.Net.connect(Unknown Source)
at sun.nio.ch.Net.connect(Unknown Source)
at sun.nio.ch.SocketChannelImpl.connect(Unknown Source)
at java.nio.channels.SocketChannel.open(Unknown Source)
... 27 more


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

-- Head --
Stacktrace:
at net.minecraft.server.MinecraftServer.<init>(SourceFile:120)
at bsx.<init>(SourceFile:38)

-- Starting integrated server --
Details:
Level ID: Impossible
Level Name: Impossible
Stacktrace:
at bao.a(SourceFile:1610)
at bdx.e(SourceFile:162)
at bdy.a(SourceFile:214)
at bcm.a(SourceFile:186)
at bdx.a(SourceFile:187)

-- Screen render details --
Details:
Screen name: bee
Mouse location: Scaled: (331, 42). Absolute: (662, 544)
Screen size: Scaled: (625, 315). Absolute: (1250, 630). Scale factor of 2
Stacktrace:
at blt.b(SourceFile:852)
at bao.ak(SourceFile:801)
at bao.f(SourceFile:728)
at net.minecraft.client.main.Main.main(SourceFile:148)

-- System Details --
Details:
Minecraft Version: 1.7.10
Operating System: Windows Vista (x86) version 6.0
Java Version: 1.7.0_67, Oracle Corporation
Java VM Version: Java HotSpot(TM) Client VM (mixed mode, sharing), Oracle Corporation
Memory: 47465600 bytes (45 MB) / 81973248 bytes (78 MB) up to 518979584 bytes (494 MB)
JVM Flags: 3 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx512M -Xmx512M
AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
Launched Version: 1.7.10
LWJGL: 2.9.1
OpenGL: GeForce 6150SE nForce 430/PCI/SSE2/3DNOW! GL version 2.1.2, NVIDIA Corporation
GL Caps: Using GL 1.3 multitexturing.
Using framebuffer objects because EXT_framebuffer_object 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: []
Current Language: Français (France)
Profiler Position: N/A (disabled)
Vec3 Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
Anisotropic Filtering: Off (1)

Voila merci d'avoir lu si quelqu'un pouvait m'aider rapidement ça serait vraiement sympa.
Merci.

EDIT : Je viens d'essayer avec le launcheur Ascentia et ça ne fonctionne toujours pas...

 

Salut a tous je ne sais pas ce qu'il s'est passer mais maintenant ça fonctionne.