Problème de connection

---- Minecraft Crash Report ----
// Don't be sad, have a hug! <3

Time: 21/08/14 12:02
Description: Ticking screen

java.lang.IllegalArgumentException: Could not get provider type for dimension -87, does not exist
at net.minecraftforge.common.DimensionManager.getProviderType(DimensionManager.java:148)
at net.minecraftforge.common.DimensionManager.createProviderFor(DimensionManager.java:302)
at net.minecraft.world.WorldProvider.func_76570_a(WorldProvider.java:160)
at net.minecraft.client.multiplayer.WorldClient.<init>(WorldClient.java:54)
at net.minecraft.client.network.NetHandlerPlayClient.func_147282_a(NetHandlerPlayClient.java:232)
at net.minecraft.network.play.server.S01PacketJoinGame.func_148833_a(SourceFile:70)
at net.minecraft.network.play.server.S01PacketJoinGame.func_148833_a(SourceFile:13)
at net.minecraft.network.NetworkManager.func_74428_b(NetworkManager.java:197)
at net.minecraft.client.multiplayer.GuiConnecting.func_73876_c(SourceFile:76)
at net.minecraft.client.Minecraft.func_71407_l(Minecraft.java:1600)
at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:916)
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:835)
at net.minecraft.client.main.Main.main(SourceFile:103)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at net.minecraft.launchwrapper.Launch.launch(Launch.java:134)
at net.minecraft.launchwrapper.Launch.main(Launch.java:28)


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

-- Head --
Stacktrace:
at net.minecraftforge.common.DimensionManager.getProviderType(DimensionManager.java:148)
at net.minecraftforge.common.DimensionManager.createProviderFor(DimensionManager.java:302)
at net.minecraft.world.WorldProvider.func_76570_a(WorldProvider.java:160)
at net.minecraft.client.multiplayer.WorldClient.<init>(WorldClient.java:54)
at net.minecraft.client.network.NetHandlerPlayClient.func_147282_a(NetHandlerPlayClient.java:232)
at net.minecraft.network.play.server.S01PacketJoinGame.func_148833_a(SourceFile:70)
at net.minecraft.network.play.server.S01PacketJoinGame.func_148833_a(SourceFile:13)
at net.minecraft.network.NetworkManager.func_74428_b(NetworkManager.java:197)
at net.minecraft.client.multiplayer.GuiConnecting.func_73876_c(SourceFile:76)

-- Affected screen --
Details:
Screen name: net.minecraft.client.multiplayer.GuiConnecting
Stacktrace:
at net.minecraft.client.Minecraft.func_71407_l(Minecraft.java:1600)
at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:916)
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:835)
at net.minecraft.client.main.Main.main(SourceFile:103)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at net.minecraft.launchwrapper.Launch.launch(Launch.java:134)
at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

-- System Details --
Details:
Minecraft Version: 1.7.2
Operating System: Windows 8.1 (amd64) version 6.3
Java Version: 1.7.0_55, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 460467184 bytes (439 MB) / 663748608 bytes (633 MB) up to 2863661056 bytes (2731 MB)
JVM Flags: 3 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx3072m -XX:MaxPermSize=256m
AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
FML: MCP v9.03 FML v7.2.193.1078 Minecraft Forge 10.12.1.1078 7 mods loaded, 7 mods active
mcp{9.03} [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
FML{7.2.193.1078} [Forge Mod Loader] (modpack.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
Forge{10.12.1.1078} [Minecraft Forge] (modpack.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
ArchimedesShips{1.7.2 v1.5.2} [Archimedes' Ships] (ArchimedesShips.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
customnpcs{1.7.2} [CustomNpcs] (CustomNPCs_1.7.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
VaeVictisMod{0.2.4} [Vae Victis Mod] (VaeVictisMod-1.7.2-0.2.4.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
weaponmod{1.7.2 v1.14.2} [Balkon's WeaponMod] (weaponmod-1.14.2-fixed.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
Launched Version: 1.7.2-Forge10.12.1.1078
LWJGL: 2.9.0
OpenGL: GeForce GTX 660/PCIe/SSE2 GL version 4.4.0, NVIDIA Corporation
Is Modded: Definitely; Client brand changed to 'fml,forge'
Type: Client (map_client.txt)
Resource Packs: []
Current Language: English (US)
Profiler Position: N/A (disabled)
Vec3 Pool Size: ~~ERROR~~ NullPointerException: null
Anisotropic Filtering: Off (1)