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my minecraft crashed and I dont know why. It worked properly at the first then I deleted minecraft.jar and downloaded it again. I have forge and everything installed properly here is the crash report.

---- Minecraft Crash Report ----
// Oops.

Time: 11.04.2015 17:32
Description: Unexpected error

java.lang.IndexOutOfBoundsException
at java.nio.Buffer.checkIndex(Unknown Source)
at java.nio.DirectIntBufferU.get(Unknown Source)
at net.minecraft.client.renderer.RenderGlobal.func_72712_a(RenderGlobal.java:350)
at net.minecraft.client.renderer.RenderGlobal.func_72732_a(RenderGlobal.java:294)
at net.minecraft.client.Minecraft.func_71353_a(Minecraft.java:2205)
at net.minecraft.client.Minecraft.func_71403_a(Minecraft.java:2135)
at net.minecraft.client.network.NetHandlerPlayClient.func_147282_a(NetHandlerPlayClient.java:239)
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:212)
at net.minecraft.client.Minecraft.func_71407_l(Minecraft.java:2050)
at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:962)
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:887)
at net.minecraft.client.main.Main.main(SourceFile:148)
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:135)
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 java.nio.Buffer.checkIndex(Unknown Source)
at java.nio.DirectIntBufferU.get(Unknown Source)
at net.minecraft.client.renderer.RenderGlobal.func_72712_a(RenderGlobal.java:350)
at net.minecraft.client.renderer.RenderGlobal.func_72732_a(RenderGlobal.java:294)
at net.minecraft.client.Minecraft.func_71353_a(Minecraft.java:2205)
at net.minecraft.client.Minecraft.func_71403_a(Minecraft.java:2135)
at net.minecraft.client.network.NetHandlerPlayClient.func_147282_a(NetHandlerPlayClient.java:239)
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:212)

-- Affected level --
Details:
Level name: MpServer
All players: 0 total; []
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: (8,64,8), Chunk: (at 8,4,8 in 0,0; contains blocks 0,0,0 to 15,255,15), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
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: 0 total; []
Retry entities: 0 total; []
Server brand: ~~ERROR~~ NullPointerException: null
Server type: Integrated singleplayer server
Stacktrace:
at net.minecraft.client.multiplayer.WorldClient.func_72914_a(WorldClient.java:373)
at net.minecraft.client.Minecraft.func_71396_d(Minecraft.java:2433)
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:916)
at net.minecraft.client.main.Main.main(SourceFile:148)
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:135)
at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

-- System Details --
Details:
Minecraft Version: 1.7.10
Operating System: Windows 8 (amd64) version 6.2
Java Version: 1.8.0_31, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 110603360 bytes (105 MB) / 306601984 bytes (292 MB) up to 1060372480 bytes (1011 MB)
JVM Flags: 6 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G -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: 13, tallocated: 95
FML: MCP v9.05 FML v7.10.85.1236 Minecraft Forge 10.13.2.1236 7 mods loaded, 7 mods active
mcp{9.05} [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
FML{7.10.85.1236} [Forge Mod Loader] (forge-1.7.10-10.13.2.1236.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Forge{10.13.2.1236} [Minecraft Forge] (forge-1.7.10-10.13.2.1236.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
DamageIndicatorsMod{3.2.0} [Damage Indicators] ([1.7.10]DamageIndicatorsMod-3.2.0.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
customnpcs{1.7.10b} [CustomNpcs] (CustomNPCs_1.7.10b.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
sgs_treasure{2.4} [SGS Treasure!] (Treasure-1.7.10-2.4.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
nolpfij_wildycraft{1.7.3} [Wildycraft] (wildycraft-1.7.10-1.7.3.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Launched Version: 1.7.10-Forge10.13.2.1236
LWJGL: 2.9.1
OpenGL: Intel(R) HD Graphics 4000 GL version 4.0.0 - Build 9.17.10.2857, 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: 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: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
Anisotropic Filtering: Off (1)

thanks I hope it works