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Hoping someone can help me out here. Every time I try to open Minecraft, it crashes, and I get the following spiel (apologies - it's quite long)

---- Minecraft Crash Report ----

WARNING: coremods are present:
CCLCorePlugin (CodeChickenLib-1.8-1.1.2.133-universal.jar)
Contact their authors BEFORE contacting forge

// Would you like a cupcake?

Time: 08/11/15 7:33 PM
Description: Exception in server tick loop

java.lang.RuntimeException: Already decorating
at net.minecraft.world.biome.BiomeDecorator.func_180292_a(BiomeDecorator.java:96)
at net.minecraft.world.biome.BiomeGenBase.func_180624_a(BiomeGenBase.java:350)
at net.minecraft.world.biome.BiomeGenJungle.func_180624_a(BiomeGenJungle.java:61)
at net.minecraft.world.gen.ChunkProviderGenerate.func_73153_a(ChunkProviderGenerate.java:470)
at net.minecraft.world.gen.ChunkProviderServer.func_73153_a(ChunkProviderServer.java:269)
at net.minecraft.world.chunk.Chunk.func_76624_a(Chunk.java:1098)
at net.minecraft.world.gen.ChunkProviderServer.originalLoadChunk(ChunkProviderServer.java:180)
at net.minecraft.world.gen.ChunkProviderServer.loadChunk(ChunkProviderServer.java:122)
at net.minecraft.world.gen.ChunkProviderServer.func_73158_c(ChunkProviderServer.java:92)
at net.minecraft.world.gen.ChunkProviderServer.func_73154_d(ChunkProviderServer.java:189)
at net.minecraft.world.World.func_72964_e(World.java:304)
at net.minecraft.world.World.func_175726_f(World.java:299)
at net.minecraft.world.World.func_180501_a(World.java:319)
at net.minecraft.world.gen.feature.WorldGenerator.func_175903_a(SourceFile:41)
at net.minecraft.world.gen.feature.WorldGenBigTree.func_175937_a(WorldGenBigTree.java:171)
at net.minecraft.world.gen.feature.WorldGenBigTree.func_175939_d(WorldGenBigTree.java:248)
at net.minecraft.world.gen.feature.WorldGenBigTree.func_180709_b(WorldGenBigTree.java:307)
at net.minecraft.world.biome.BiomeDecorator.func_150513_a(BiomeDecorator.java:182)
at net.minecraft.world.biome.BiomeDecorator.func_180292_a(BiomeDecorator.java:125)
at net.minecraft.world.biome.BiomeGenBase.func_180624_a(BiomeGenBase.java:350)
at net.minecraft.world.biome.BiomeGenJungle.func_180624_a(BiomeGenJungle.java:61)
at net.minecraft.world.gen.ChunkProviderGenerate.func_73153_a(ChunkProviderGenerate.java:470)
at net.minecraft.world.gen.ChunkProviderServer.func_73153_a(ChunkProviderServer.java:269)
at net.minecraft.world.chunk.Chunk.func_76624_a(Chunk.java:1126)
at net.minecraft.world.gen.ChunkProviderServer.originalLoadChunk(ChunkProviderServer.java:180)
at net.minecraft.world.gen.ChunkProviderServer.loadChunk(ChunkProviderServer.java:122)
at net.minecraft.world.gen.ChunkProviderServer.func_73158_c(ChunkProviderServer.java:92)
at net.minecraft.server.MinecraftServer.func_71222_d(MinecraftServer.java:302)
at net.minecraft.server.integrated.IntegratedServer.func_71247_a(IntegratedServer.java:112)
at net.minecraft.server.integrated.IntegratedServer.func_71197_b(IntegratedServer.java:126)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:438)
at java.lang.Thread.run(Thread.java:745)

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

-- System Details --
Details:
Minecraft Version: 1.8
Operating System: Windows 10 (amd64) version 10.0
Java Version: 1.8.0_25, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 672576928 bytes (641 MB) / 1630408704 bytes (1554 MB) up to 2134114304 bytes (2035 MB)
JVM Flags: 6 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx2G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M
IntCache: cache: 0, tcache: 0, allocated: 13, tallocated: 95
FML: MCP v9.10 FML v8.0.99.99 Minecraft Forge 11.14.3.1487 33 mods loaded, 33 mods active
States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored
UCHIJAA mcp{9.05} [Minecraft Coder Pack] (minecraft.jar)
UCHIJAA FML{8.0.99.99} [Forge Mod Loader] (forge-1.8-11.14.3.1487.jar)
UCHIJAA Forge{11.14.3.1487} [Minecraft Forge] (forge-1.8-11.14.3.1487.jar)
UCHIJAA inverseoregen{1.0} [Inverse Ore Generator] ([1.8] Inverse Ore Generator.jar)
UCHIJAA securitycraft{v1.7.4.1} [SecurityCraft] ([1.8] SecurityCraft v1.7.4.1.jar)
UCHIJAA ArchitectureCraft{1.0.0} [ArchitectureCraft] (ArchitectureCraft-1.0.0-mc1.8.jar)
UCHIJAA blocklings{3.0.3} [Blocklings] (Blocklings-3.0.3-1.8.jar)
UCHIJAA bunkermod{2.0} [Bunkermod] (Bunkermod-mc1.8-v2.0.jar)
UCHIJAA butterflymania{1.5} [Butterfly Mania] (butterflymania-1.8-1.5.jar)
UCHIJAA Chameleon{1.8-0.1.0} [Chameleon] (Chameleon-1.8-0.1.0.jar)
UCHIJAA DamageIndicatorsMod{3.3.2} [Damage Indicators] (Damage-Indicators-Mod-1.8.jar)
UCHIJAA LomLib{4.1.0} [LomLib] (LomLib-1.8-4.1.0-universal.jar)
UCHIJAA ElementalCreepers{5.0.0} [Elemental Creepers] (Elemental Creepers-universal-1.8-5.0.0.jar)
UCHIJAA emeraldobsidianmod{1.3.1} [Emerald & Obsidian tools/armor mod] (emeraldobsidianmod-1.8-1.3.1.jar)
UCHIJAA examplemod{1.0} [examplemod] (Eyemod-Mod-1.8.jar)
UCHIJAA eyemod{2.0} [EyeMod] (Eyemod-Mod-1.8.jar)
UCHIJAA furbymania{1.0.3} [Furby Mania] (furbymania-1.8-1.0.3.jar)
UCHIJAA hungryanimals{1.8-11.14.3.1499-2.0} [Hungry Animals] (hungryanimals-2.0.alpha04.jar)
UCHIJAA ism{6.2.0} [MaggiCraft's Instant Structures Mod] (Instant_Structures18.jar)
UCHIJAA InventoryPets{1.3.3} [Inventory Pets] (inventorypets-1.8-1.3.3.jar)
UCHIJAA lucky{6.0.0} [Lucky Block] (LuckyBlock_1-8-3_v6-0-0.zip)
UCHIJAA RadixCore{2.0.3-1.8} [RadixCore] (RadixCore-2.0.3-1.8-universal.jar)
UCHIJAA MCA{5.0.6.1-1.8} [Minecraft Comes Alive] (MCA-5.0.6.2-1.8-universal.jar)
UCHIJAA cfm{3.4.8} [§9MrCrayfish's Furniture Mod] (MrCrayfishFurnitureModv3.4.8-build1(1.8).jar)
UCHIJAA pixelmon{4.0.7} [Pixelmon] (Pixelmon-1.8-4.0.7-universal.jar)
UCHIJAA progressiveautomation{1.6.15} [Progressive Automation] (ProgressiveAutomation-1.8-1.6.15.jar)
UCHIJAA corerm{1.2c} [RikMuld's Core] (RikMuldsCore_1.2c.jar)
UCHIJAA chunkbase_slimemod_ssp{2.1} [Slime Mod (SSP)] (SlimeModSSP-1.8-2.1.jar)
UCHIJAA StorageDrawers{1.8-2.1.6} [Storage Drawers] (StorageDrawers-1.8-2.1.6.jar)
UCHIJAA camping{2.2e} [The Camping Mod 2] (TheCampingMod_2.2e.jar)
UCHIJAA thinknoodlesmod{@[email protected]} [Thinknoodles mod] (thinknoodlesmod-1.8-1.12.jar)
UCHIJAA treeores{1.2} [Treeores] (TreeOres-1.8.0-1.2.jar)
UCHIJAA youtubers{1.7.0} [Youtubers+ Mod] (youtubers-mc1.8-1.7 (1).jar)
Loaded coremods (and transformers):
CCLCorePlugin (CodeChickenLib-1.8-1.1.2.133-universal.jar)
codechicken.lib.asm.ClassHeirachyManager
codechicken.lib.asm.RenderHookTransformer
GL info: ~~ERROR~~ RuntimeException: No OpenGL context found in the current thread.
Profiler Position: N/A (disabled)
Player Count: 0 / 8; []
Type: Integrated Server (map_client.txt)
Is Modded: Definitely; Client brand changed to 'fml,forge'

I don't know where to begin with trying to fix this problem. Thoughts? Advice? Stories of consolation? Thanks in advance.