Crash Report Minecraft

Depuis maintenant plusieurs jours je lance Minecraft, je me connecte sur le serveur je vais au Lobby puis clique sur Pvp Faction et Créatif il me met un message d'erreur mais pas en Pvp Soup.

Voici le message d'erreur :

---- Minecraft Crash Report ----
// I just don't know what went wrong :(

Time: 05/08/16 20:40
Description: Unexpected error

java.lang.NullPointerException: Unexpected error
at afy.<init>(SourceFile:154)
at bkg.<init>(SourceFile:42)
at bkc.a(SourceFile:597)
at hp.a(SourceFile:32)
at hp.a(SourceFile:13)
at eg.a(SourceFile:166)
at bkf.e(SourceFile:212)
at azl.p(SourceFile:1281)
at azl.ah(SourceFile:757)
at azl.f(SourceFile:711)
at net.minecraft.client.main.Main.main(SourceFile:148)

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

-- Head --
Stacktrace:
at afy.<init>(SourceFile:154)
at bkg.<init>(SourceFile:42)
at bkc.a(SourceFile:597)
at hp.a(SourceFile:32)
at hp.a(SourceFile:13)
at eg.a(SourceFile:166)
at bkf.e(SourceFile:212)

-- Affected level --
Details:
Level name: MpServer
All players: 1 total; [bkl['nnaoy35'/36676, l='MpServer', x=8,50, y=66,62, z=8,50]]
Chunk stats: MultiplayerChunkCache: 0, 0
Level seed: 0
Level generator: ID 00 - default, ver 1. Features enabled: false
Level generator options:
Level spawn location: World: (-4,68,158), Chunk: (at 12,4,14 in -1,9; contains blocks -16,0,144 to -1,255,159), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511)
Level time: 0 game time, 0 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: survival (ID 0). Hardcore: false. Cheats: false
Forced entities: 1 total; [bkl['nnaoy35'/36676, l='MpServer', x=8,50, y=66,62, z=8,50]]
Retry entities: 0 total; []
Server brand: BungeeCord (git:BungeeCord-Bootstrap:1.8-SNAPSHOT:"cc3a8c0":1071) <- Spigot
Server type: Non-integrated multiplayer server
Stacktrace:
at bkg.a(SourceFile:289)
at azl.b(SourceFile:1947)
at azl.f(SourceFile:725)
at net.minecraft.client.main.Main.main(SourceFile:148)

-- System Details --
Details:
Minecraft Version: 1.7.5
Operating System: Windows 10 (x86) version 10.0
Java Version: 1.8.0_101, Oracle Corporation
Java VM Version: Java HotSpot(TM) Client VM (mixed mode), Oracle Corporation
Memory: 176270248 bytes (168 MB) / 220422144 bytes (210 MB) up to 523501568 bytes (499 MB)
JVM Flags: 6 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx512M -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M
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: 1.7.5
LWJGL: 2.9.1
OpenGL: Intel(R) HD Graphics 4400 GL version 4.3.0 - Build 10.18.15.4279, Intel
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: 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)

Merci d'avance pour votre aide !