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Whenever I join a world, create a world, or join a server, my MC crashes and brings me back to launcher. I only have installed Optifine 1.8.1 installed. These are the notes:

Dec 29, 2014 9:43:04 AM net.minecraft.launchwrapper.LogWrapper log
INFO: Loading tweak class name optifine.OptiFineTweaker
Dec 29, 2014 9:43:04 AM net.minecraft.launchwrapper.LogWrapper log
INFO: Using primary tweak class name optifine.OptiFineTweaker
Dec 29, 2014 9:43:04 AM net.minecraft.launchwrapper.LogWrapper log
INFO: Calling tweak class optifine.OptiFineTweaker
OptiFineTweaker: acceptOptions
OptiFineTweaker: injectIntoClassLoader skipped, OptiFine is loaded as a library
OptiFineTweaker: getLaunchArguments
OptiFineTweaker: getLaunchTarget
Dec 29, 2014 9:43:04 AM net.minecraft.launchwrapper.LogWrapper log
INFO: Launching wrapped minecraft {net.minecraft.client.main.Main}
[09:43:05] [Client thread/INFO]: Setting user: RobloxNerd101
[09:43:05] [Client thread/INFO]: (Session ID is token:0d71cee1be254cc4b1364cf93d3fb441:af70c51f46444150a95a62f16db2d290)
[OptiFine] (Reflector) Method not pesent: ato.func_149713_g
[09:43:07] [Client thread/INFO]: LWJGL Version: 2.9.1
[OptiFine]
[OptiFine] OptiFine_1.8.1_HD_U_B4
[OptiFine] Mon Dec 29 09:43:07 PST 2014
[OptiFine] OS: Windows 8.1 (amd64) version 6.3
[OptiFine] Java: 1.8.0_25, Oracle Corporation
[OptiFine] VM: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
[OptiFine] LWJGL: 2.9.1
[OptiFine] OpenGL: Intel(R) HD Graphics 4400, version 4.2.0 - Build 10.18.10.3496, Intel
[OptiFine] OpenGL Version: 4.0
[OptiFine] OpenGL Fancy fog: Not available (GL_NV_fog_distance)
[OptiFine] Maximum texture size: 8192x8192
[OptiFine] Checking for new version
[09:43:07] [Client thread/INFO]: Reloading ResourceManager: Default, ([1.7]_Huahwi_Pack_64x stone sword fix.zip
[OptiFine] *** Reloading textures ***
[OptiFine] Resource packs: ([1.7]_Huahwi_Pack_64x stone sword fix.zip
[OptiFine] Version found: B4
[09:43:08] [Sound Library Loader/INFO]: Starting up SoundSystem...
[09:43:08] [Thread-7/INFO]: Initializing LWJGL OpenAL
[09:43:08] [Thread-7/INFO]: (The LWJGL binding of OpenAL. For more information, see http://www.lwjgl.org)
[OptiFine] Loading textures/font/ascii.properties
[OptiFine] Loading textures/font/ascii_sga.properties
[09:43:09] [Thread-7/INFO]: OpenAL initialized.
[09:43:09] [Sound Library Loader/INFO]: Sound engine started
[OptiFine] (Reflector) Class not present: ModLoader
[OptiFine] (Reflector) Class not present: net.minecraft.src.FMLRenderAccessLibrary
[OptiFine] (Reflector) Class not present: LightCache
[OptiFine] (Reflector) Class not present: BlockCoord
[OptiFine] (Reflector) Class not present: net.minecraftforge.common.MinecraftForge
[OptiFine] (Reflector) Class not present: net.minecraftforge.common.ForgeHooks
[OptiFine] (Reflector) Class not present: net.minecraftforge.client.MinecraftForgeClient
[OptiFine] (Reflector) Class not present: net.minecraftforge.client.ForgeHooksClient
[OptiFine] (Reflector) Class not present: net.minecraftforge.fml.common.FMLCommonHandler
[OptiFine] (Reflector) Class not present: net.minecraftforge.fml.client.FMLClientHandler
[OptiFine] (Reflector) Class not present: net.minecraftforge.client.IItemRenderer$ItemRenderType
[OptiFine] (Reflector) Method not pesent: bgb.getSkyRenderer
[OptiFine] (Reflector) Method not pesent: bgb.getCloudRenderer
[OptiFine] (Reflector) Method not pesent: bgb.getWeatherRenderer
[OptiFine] (Reflector) Method not pesent: aqr.countEntities
[OptiFine] (Reflector) Class not present: net.minecraftforge.client.IRenderHandler
[OptiFine] (Reflector) Class not present: net.minecraftforge.common.DimensionManager
[OptiFine] (Reflector) Class not present: net.minecraftforge.event.world.WorldEvent$Load
[OptiFine] (Reflector) Class not present: net.minecraftforge.client.event.GuiScreenEvent$DrawScreenEvent$Pre
[OptiFine] (Reflector) Class not present: net.minecraftforge.client.event.GuiScreenEvent$DrawScreenEvent$Post
[OptiFine] (Reflector) Class not present: net.minecraftforge.client.event.EntityViewRenderEvent$FogColors
[OptiFine] (Reflector) Class not present: net.minecraftforge.client.event.EntityViewRenderEvent$FogDensity
[OptiFine] (Reflector) Class not present: net.minecraftforge.client.event.EntityViewRenderEvent$RenderFogEvent
[OptiFine] (Reflector) Class not present: net.minecraftforge.fml.common.eventhandler.EventBus
[OptiFine] (Reflector) Class not present: net.minecraftforge.fml.common.eventhandler.Event$Result
[OptiFine] (Reflector) Class not present: net.minecraftforge.event.ForgeEventFactory
[OptiFine] (Reflector) Class not present: net.minecraftforge.event.world.ChunkWatchEvent$UnWatch
[OptiFine] (Reflector) Method not pesent: ato.getBedDirection
[OptiFine] (Reflector) Method not pesent: ato.isBedFoot
[OptiFine] (Reflector) Method not pesent: ato.canRenderInPass
[OptiFine] (Reflector) Method not pesent: ato.hasTileEntity
[OptiFine] (Reflector) Method not pesent: ato.canCreatureSpawn
[OptiFine] (Reflector) Field not present: wx.captureDrops
[OptiFine] (Reflector) Field not present: wx.capturedDrops
[OptiFine] (Reflector) Method not pesent: wx.shouldRenderInPass
[OptiFine] (Reflector) Method not pesent: wx.canRiderInteract
[OptiFine] (Reflector) Method not pesent: bck.shouldRenderInPass
[OptiFine] (Reflector) Method not pesent: bck.getRenderBoundingBox
[OptiFine] (Reflector) Method not pesent: aln.onEntitySwing
[OptiFine] (Reflector) Method not pesent: ws.isCurativeItem
[OptiFine] (Reflector) Method not pesent: amg.hasEffect
[OptiFine] (Reflector) Method not pesent: amv.getRecordResource
[09:43:11] [Client thread/INFO]: Created: 2048x2048 textures-atlas
[OptiFine] *** Reloading custom textures ***
[OptiFine] (Reflector) Field not present: cuy.field_110597_b
[OptiFine] Loading custom colors: textures/colormap/grass.png
[OptiFine] Loading custom colors: textures/colormap/foliage.png
[OptiFine] Loading custom colors: mcpatcher/colormap/pine.png
[OptiFine] Loading custom colors: mcpatcher/colormap/birch.png
[OptiFine] Loading custom colors: mcpatcher/colormap/swampgrass.png
[OptiFine] Loading custom colors: mcpatcher/colormap/swampfoliage.png
[OptiFine] Loading custom colors: mcpatcher/colormap/sky0.png
[OptiFine] Loading custom colors: mcpatcher/colormap/fog0.png
[OptiFine] Loading custom colors: mcpatcher/colormap/underwater.png
[OptiFine] Loading custom colors: mcpatcher/colormap/redstone.png
[OptiFine] Loading custom colors: mcpatcher/lightmap/world-1.png
[OptiFine] Loading custom colors: mcpatcher/lightmap/world0.png
[OptiFine] Loading custom colors: mcpatcher/lightmap/world1.png
[OptiFine] Loading mcpatcher/color.properties
[OptiFine] Custom color: lilypad = 3d6e31
[OptiFine] Custom color: particle.water = ffffff
[OptiFine] Block palette: palette.block.~/colormap/region.png = 1 4 5 6 7 12 13 14 15 16 17 19 21 22 24 25 29 33 34 35 37 38 39 40 41 42 43 44 45 46 47 48 49 52 53 54 56 57 58 60 63 64 65 67 68 69 70 71 72 73 74 77 81 82 84 85 86 87 88 91 92 93 94 95 96 97 98 99 100 103 107 108 109 112 113 114 115 116 117 120 121 123 124 125 126 127 128 129 130 131 133 134 135 136 137 139 140 143 145 146 147 148 149 150 151 152 153 155 156 159 170 171 172 173
[OptiFine] Loading custom colors: mcpatcher/colormap/region.png
[OptiFine] Block palette: palette.block.~/colormap/swampgrass.png = 83
[OptiFine] Loading custom colors: mcpatcher/colormap/swampgrass.png
[OptiFine] CustomSky properties: mcpatcher/sky/world0/sky1.properties
[OptiFine] CustomSky properties: mcpatcher/sky/world0/sky2.properties
[OptiFine] CustomSky properties: mcpatcher/sky/world0/sky3.properties
[OptiFine] CustomSky properties: mcpatcher/sky/world0/sky4.properties
[OptiFine] CustomSky properties: mcpatcher/sky/world0/sky5.properties
[OptiFine] CustomSky properties: mcpatcher/sky/world0/sky6.properties
[OptiFine] CustomSky properties: mcpatcher/sky/world0/sky7.properties
[OptiFine] CustomSky properties: mcpatcher/sky/world0/sky8.properties
[09:43:19] [Server thread/INFO]: Starting integrated minecraft server version 1.8.1
[09:43:19] [Server thread/INFO]: Generating keypair
[09:43:20] [Server thread/INFO]: Preparing start region for level 0
[09:43:21] [Server thread/INFO]: Preparing spawn area: 8%
[09:43:22] [Server thread/INFO]: Preparing spawn area: 15%
[09:43:23] [Server thread/INFO]: Preparing spawn area: 24%
[09:43:24] [Server thread/INFO]: Preparing spawn area: 34%
[09:43:25] [Server thread/INFO]: Preparing spawn area: 47%
[09:43:26] [Server thread/INFO]: Preparing spawn area: 58%
[09:43:27] [Server thread/INFO]: Preparing spawn area: 69%
[09:43:28] [Server thread/INFO]: Preparing spawn area: 85%
[09:43:29] [Server thread/INFO]: Changing view distance to 8, from 10
[09:43:29] [Server thread/INFO]: usernamelol12[local:E:2ab71ced] logged in with entity id 245 at (186.5, 69.0, 257.5)
[09:43:29] [Server thread/INFO]: usernamelol12 joined the game
[09:43:35] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 6240ms behind, skipping 124 tick(s)