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Hi Ive been using forge for a long time and i stopped to pvp on 1.8 2 months later when i try to start up forge it just dosent pop up Can someone help me?

heres the Crash report:

[11:08:24] [main/INFO] [LaunchWrapper]: Loading tweak class name net.minecraftforge.fml.common.launcher.FMLTweaker
[11:08:24] [main/INFO] [LaunchWrapper]: Using primary tweak class name net.minecraftforge.fml.common.launcher.FMLTweaker
[11:08:24] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.common.launcher.FMLTweaker
[11:08:24] [main/INFO] [FML]: Forge Mod Loader version 8.0.14.1281 for Minecraft 1.8 loading
[11:08:24] [main/INFO] [FML]: Java is Java HotSpot(TM) 64-Bit Server VM, version 1.7.0_76, running on Windows 7:amd64:6.1, installed at C:\Program Files\Java\jre7
[11:08:24] [main/INFO] [FML]: Loading tweaker optifine.OptiFineForgeTweaker from OptiFine_1.8.1_HD_U_C7 (1).jar
[11:08:24] [main/INFO] [LaunchWrapper]: Loading tweak class name net.minecraftforge.fml.common.launcher.FMLInjectionAndSortingTweaker
[11:08:24] [main/INFO] [LaunchWrapper]: Loading tweak class name optifine.OptiFineForgeTweaker
[11:08:24] [main/INFO] [LaunchWrapper]: Loading tweak class name net.minecraftforge.fml.common.launcher.FMLDeobfTweaker
[11:08:24] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.common.launcher.FMLInjectionAndSortingTweaker
[11:08:24] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.common.launcher.FMLInjectionAndSortingTweaker
[11:08:24] [main/INFO] [LaunchWrapper]: Calling tweak class optifine.OptiFineForgeTweaker
[11:08:24] [main/INFO] [STDOUT]: [optifine.OptiFineForgeTweaker:dbg:49]: OptiFineForgeTweaker: acceptOptions
[11:08:24] [main/INFO] [STDOUT]: [optifine.OptiFineForgeTweaker:dbg:49]: OptiFineForgeTweaker: injectIntoClassLoader
[11:08:24] [main/INFO] [STDOUT]: [optifine.OptiFineClassTransformer:dbg:179]: OptiFine ClassTransformer
[11:08:24] [main/INFO] [STDOUT]: [optifine.OptiFineClassTransformer:dbg:179]: OptiFine URL: file:/C:/Users/NVR/AppData/Roaming/.minecraft/mods/OptiFine_1.8.1_HD_U_C7%20(1).jar
[11:08:24] [main/INFO] [STDOUT]: [optifine.OptiFineClassTransformer:dbg:179]: OptiFine ZIP file: [email protected]
[11:08:24] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper
[11:08:27] [main/INFO] [FML]: Found valid fingerprint for Minecraft Forge. Certificate fingerprint e3c3d50c7c986df74c645c0ac54639741c90a557
[11:08:27] [main/INFO] [FML]: Found valid fingerprint for Minecraft. Certificate fingerprint cd99959656f753dc28d863b46769f7f8fbaefcfc
[11:08:27] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper
[11:08:27] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.common.launcher.FMLDeobfTweaker
[11:08:28] [main/INFO] [LaunchWrapper]: Loading tweak class name net.minecraftforge.fml.common.launcher.TerminalTweaker
[11:08:28] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.common.launcher.TerminalTweaker
[11:08:28] [main/INFO] [STDOUT]: [optifine.OptiFineForgeTweaker:dbg:49]: OptiFineForgeTweaker: getLaunchArguments
[11:08:28] [main/INFO] [LaunchWrapper]: Launching wrapped minecraft {net.minecraft.client.main.Main}
[11:08:29] [main/ERROR] [LaunchWrapper]: Unable to launch
java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.7.0_76]
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_76]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_76]
at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.7.0_76]
at net.minecraft.launchwrapper.Launch.launch(Launch.java:135) [launchwrapper-1.11.jar:?]
at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [launchwrapper-1.11.jar:?]
Caused by: java.lang.VerifyError: Bad type on operand stack
Exception Details:
Location:
net/minecraft/client/Minecraft.func_147121_ag()V @188: invokestatic
Reason:
Type 'net/minecraft/client/multiplayer/WorldClient' (current frame, stack[2]) is not assignable to 'net/minecraft/world/World'
Current Frame:
bci: @188
flags: { }
locals: { 'net/minecraft/client/Minecraft', integer, 'net/minecraft/item/ItemStack', 'net/minecraft/util/BlockPos', integer }
stack: { 'net/minecraft/client/entity/EntityPlayerSP', 'net/minecraftforge/event/entity/player/PlayerInteractEvent$Action', 'net/minecraft/client/multiplayer/WorldClient', 'net/minecraft/util/BlockPos', 'net/minecraft/util/EnumFacing' }
Bytecode:
0000000: 2a07 b508 7904 3c2a b406 1eb4 087d b608
0000010: 834d 2ab4 0826 c700 11b2 01ca 1308 63b9
0000020: 0886 0200 a701 1ab2 0869 2ab4 0826 b408
0000030: 2ab6 086c 2eab 0000 0000 0109 0000 0002
0000040: 0000 0001 0000 001b 0000 0002 0000 0053
0000050: 2ab4 0849 2ab4 061e 2ab4 0826 b408 6f2a
0000060: b408 26b6 088c 9900 0803 3ca7 00d3 2ab4
0000070: 0849 2ab4 061e 2ab4 0826 b408 6fb6 0890
0000080: 9900 be03 3ca7 00b9 2ab4 0826 b608 314e
0000090: 2ab4 03c3 2db6 0894 9a00 a62c c600 0a2c
00000a0: b408 97a7 0004 0336 042a b406 1eb2 089d
00000b0: 2ab4 03c3 2d2a b408 26b4 084d b808 a3b6
00000c0: 08a6 9a00 0704 a700 0403 3605 1505 9900
00000d0: 2e2a b408 492a b406 1e2a b403 c32c 2d2a
00000e0: b408 26b4 084d 2ab4 0826 b408 aab6 08ae
00000f0: 9900 0c03 3c2a b406 1eb6 085a 2cc7 0004
0000100: b12c b408 979a 001c 2ab4 061e b408 7db4
0000110: 08b2 2ab4 061e b408 7db4 08b5 0153 a700
0000120: 202c b408 9715 04a0 000d 2ab4 0849 b608
0000130: b899 000d 2ab4 03a6 b408 bbb6 08be 1b99
0000140: 002f 2ab4 061e b408 7db6 0883 4e2d c600
0000150: 202a b408 492a b406 1e2a b403 c32d b608
0000160: c299 000d 2ab4 03a6 b408 bbb6 08c5 b1
Stackmap Table:
append_frame(@39,Integer,Object[#2184])
same_frame(@80)
same_frame(@110)
same_frame(@136)
append_frame(@166,Object[#2201])
same_locals_1_stack_item_frame(@167,Integer)
append_frame(@201,Integer)
same_locals_1_stack_item_frame(@202,Integer)
append_frame(@252,Integer)
same_frame(@257)
same_frame(@289)
same_frame(@308)
chop_frame(@318,3)
same_frame(@366)

at net.minecraft.client.main.Main.main(SourceFile:40) ~[Main.class:?]
... 6 more