Problème de lancement de map ou serveur. [Sans Mod]

Bonjour,

Voici mon problème: dès que je lance une map ou un serveur (sans mod) Minecraft crash donc il m'est impossible de jouer. J'ai supprimée deux fois les fichiers .minecraft et les retéléchargent j'ai eu le même résultats.

Voici le crash report : ---- Minecraft Crash Report ----
// There are four lights!

Time: 22/04/14 16:40
Description: Starting integrated server

java.lang.ExceptionInInitializerError
at net.minecraft.server.MinecraftServer.<init>(SourceFile:120)
at bvj.<init>(SourceFile:38)
at ban.a(SourceFile:1610)
at bcx.a(SourceFile:202)
at bds.a(SourceFile:172)
at bcx.a(SourceFile:301)
at bds.d(SourceFile:232)
at bds.k(SourceFile:211)
at ban.p(SourceFile:1328)
at ban.ak(SourceFile:774)
at ban.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 nb.<clinit>(SourceFile:31)
... 12 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)
... 16 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)
... 19 more
Caused by: java.net.SocketException: Permission denied: listen
at sun.nio.ch.Net.listen(Native Method)
at sun.nio.ch.ServerSocketChannelImpl.bind(Unknown Source)
at sun.nio.ch.ServerSocketAdaptor.bind(Unknown Source)
at sun.nio.ch.ServerSocketAdaptor.bind(Unknown Source)
... 28 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 bvj.<init>(SourceFile:38)

-- Starting integrated server --
Details:
Level ID: Peace
Level Name: Peace
Stacktrace:
at ban.a(SourceFile:1610)
at bcx.a(SourceFile:202)
at bds.a(SourceFile:172)
at bcx.a(SourceFile:301)
at bds.d(SourceFile:232)
at bds.k(SourceFile:211)

-- Affected screen --
Details:
Screen name: bea
Stacktrace:
at ban.p(SourceFile:1328)
at ban.ak(SourceFile:774)
at ban.f(SourceFile:728)
at net.minecraft.client.main.Main.main(SourceFile:148)

-- System Details --
Details:
Minecraft Version: 1.7.9
Operating System: Windows 7 (amd64) version 6.1
Java Version: 1.7.0_25, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 106732632 bytes (101 MB) / 143392768 bytes (136 MB) up to 954466304 bytes (910 MB)
JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G
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: 1.7.9
LWJGL: 2.9.1
OpenGL: ATI Mobility Radeon HD 5650 GL version 4.0.9901 Compatibility Profile Context, ATI Technologies Inc.
GL Caps: Using GL 1.3 multitexturing.
Using framebuffer objects because OpenGL 3.0 is supported and separate blending 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: English (US)
Profiler Position: N/A (disabled)
Vec3 Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
Anisotropic Filtering: Off (1)





Merci d'avance.