Games : Why is my modpack crashing randomly? [duplicate]

This question already has an answer here:

• Minecraft custom modpack is crashing with a NullPointerException with a new world? 1 answer

My mod pack will crash randomly, and it doesn't matter what mod I'm messing around with or anything just randomly it will crash.

My system specs:

• Minecraft Version: 1.7.10


• Operating System: Windows 8.1


• Java: 1.8.0_31, Oracle Corporation

Here is the error I'm getting:

-- Affected level --
Details:
    Level name: MpServer
    All players: 2 total; [EntityClientPlayerMP['Sir_Cam'/35884, l='MpServer', x=706.46, y=5.62, z=1114.04], MCH_ViewEntityDummy['McHeliDummyEntity'/35894, l='MpServer', x=195.50, y=6.62, z=1195.50]]
    Chunk stats: MultiplayerChunkCache: 1089, 1098
    Level seed: 0
    Level generator: ID 01 - flat, ver 0. Features enabled: false
    Level generator options: 
    Level spawn location: World: (195,4,1195), Chunk: (at 3,0,11 in 12,74; contains blocks 192,0,1184 to 207,255,1199), Region: (0,2; contains chunks 0,64 to 31,95, blocks 0,0,1024 to 511,255,1535)
    Level time: 117399 game time, 24008 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: creative (ID 1). Hardcore: false. Cheats: false

    Server brand: fml,forge
    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 8.1 (amd64) version 6.3
    Java Version: 1.8.0_31, Oracle Corporation
    Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
    Memory: 238584856 bytes (227 MB) / 1431830528 bytes (1365 MB) up to 1908932608 bytes (1820 MB)
    JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx2g
    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 v9.05 FML v7.10.85.1277 Minecraft Forge 10.13.2.1277 Optifine OptiFine_1.7.10_HD_B5 84 mods loaded, 84 mods active
    mcp{9.05} [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed->Pre-initialized-    OpenModsLib crash transformers: [stencil_patches:FINISHED],[movement_callback:ACTIVATED],[map_gen_fix:FINISHED],[gl_capabilities_hook:FINISHED],[player_render_hook:FINISHED]
    AE2 Version: stable rv1-stable-1 for Forge 10.13.0.1187
    Mantle Environment: DO NOT REPORT THIS CRASH! Unsupported mods in environment: optifine
    TConstruct Environment: Environment healthy.
    Stencil buffer state: Function set: GL30, pool: internal, bits: 8
    Forestry : Warning: You have mods that change the behavior of Minecraft, ForgeModLoader, and/or Minecraft Forge to your client: 
Optifine
These may have caused this error, and may not be supported. Try reproducing the crash WITHOUT these mods, and report it then.
    AE2 Integration: IC2:OFF, RotaryCraft:OFF, RC:OFF, BC:ON, MJ6:ON, MJ5:ON, RF:ON, RFItem:ON, MFR:ON, DSU:ON, FZ:OFF, FMP:ON, RB:OFF, CLApi:OFF, Waila:OFF, InvTweaks:OFF, NEI:ON, CraftGuide:OFF, Mekanism:ON, ImmibisMicroblocks:OFF, BetterStorage:OFF
    Launched Version: 1.7.10-Forge10.13.2.1277
    LWJGL: 2.9.1
    OpenGL: AMD Radeon R9 200 Series GL version 4.4.13084 Compatibility Profile Context 14.301.1001.0, 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: 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)