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so installed a mod and it worked if you created a new world but i removed it and i i still cant join my worlds that i made before installing it. this is the crash report:

---- Minecraft Crash Report ----
// Quite honestly, I wouldn't worry myself about that.

Time: 9-7-16 13:06
Description: Exception in server tick loop

java.lang.ArrayIndexOutOfBoundsException: -37
at net.minecraft.world.chunk.NibbleArray.func_76582_a(SourceFile:28)
at net.minecraft.world.chunk.storage.ExtendedBlockStorage.func_76665_b(SourceFile:75)
at net.minecraft.world.chunk.Chunk.func_76628_c(Chunk.java:548)
at net.minecraft.world.chunk.Chunk.func_150812_a(Chunk.java:878)
at net.minecraft.world.chunk.Chunk.func_150813_a(Chunk.java:862)
at net.minecraft.world.chunk.storage.AnvilChunkLoader.loadEntities(AnvilChunkLoader.java:500)
at net.minecraftforge.common.chunkio.ChunkIOProvider.callStage2(ChunkIOProvider.java:41)
at net.minecraftforge.common.chunkio.ChunkIOProvider.callStage2(ChunkIOProvider.java:12)
at net.minecraftforge.common.util.AsynchronousExecutor.skipQueue(AsynchronousExecutor.java:344)
at net.minecraftforge.common.util.AsynchronousExecutor.getSkipQueue(AsynchronousExecutor.java:302)
at net.minecraftforge.common.chunkio.ChunkIOExecutor.syncChunkLoad(ChunkIOExecutor.java:12)
at net.minecraft.world.gen.ChunkProviderServer.loadChunk(ChunkProviderServer.java:126)
at net.minecraft.world.gen.ChunkProviderServer.func_73158_c(ChunkProviderServer.java:101)
at net.minecraft.server.MinecraftServer.func_71222_d(MinecraftServer.java:265)
at net.minecraft.server.integrated.IntegratedServer.func_71247_a(IntegratedServer.java:78)
at net.minecraft.server.integrated.IntegratedServer.func_71197_b(IntegratedServer.java:92)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:387)
at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:685)

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

-- System Details --
Details:
Minecraft Version: 1.7.10
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: 148878128 bytes (141 MB) / 450502656 bytes (429 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: 15, tcache: 0, allocated: 15, tallocated: 95
FML: MCP v9.05 FML v7.10.99.99 Minecraft Forge 10.13.4.1558 32 mods loaded, 32 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{7.10.99.99} [Forge Mod Loader] (forge-1.7.10-10.13.4.1558-1.7.10.jar)
UCHIJAA Forge{10.13.4.1558} [Minecraft Forge] (forge-1.7.10-10.13.4.1558-1.7.10.jar)
UCHIJAA CodeChickenCore{1.0.7.47} [CodeChicken Core] (minecraft.jar)
UCHIJAA NotEnoughItems{1.0.5.120} [Not Enough Items] (NotEnoughItems-1.7.10-1.0.5.120-universal.jar)
UCHIJAA deconstruction{2.2.7} [The Deconstruction Mod] ([MC1.7.10]deconstruction[2.2.7].jar)
UCHIJAA adventurebackpack{1.7.10-0.8b} [Adventure Backpack] (adventurebackpack-1.7.10-0.8b.jar)
UCHIJAA AncientWarfare{2.4.114-beta-MC1.7.10} [Ancient Warfare Core] (ancientwarfare-2.4.115-beta-MC1.7.10-FULL.jar)
UCHIJAA BuildCraft|Core{7.1.16} [BuildCraft] (buildcraft-7.1.16.jar)
UCHIJAA AncientWarfareAutomation{2.4.114-beta-MC1.7.10} [Ancient Warfare Automation] (ancientwarfare-2.4.115-beta-MC1.7.10-FULL.jar)
UCHIJAA AncientWarfareNEIPlugin{2.4.114-beta-MC1.7.10} [Ancient Warfare NEI Plugin] (ancientwarfare-2.4.115-beta-MC1.7.10-FULL.jar)
UCHIJAA AncientWarfareNpc{2.4.114-beta-MC1.7.10} [Ancient Warfare NPCs] (ancientwarfare-2.4.115-beta-MC1.7.10-FULL.jar)
UCHIJAA AncientWarfareStructure{2.4.114-beta-MC1.7.10} [Ancient Warfare Structures] (ancientwarfare-2.4.115-beta-MC1.7.10-FULL.jar)
UCHIJAA ArchimedesShips{1.7.10 v1.7.1} [Archimedes' Ships] (ArchimedesShips-1.7.1.jar)
UCHIJAA BuildCraft|Builders{7.1.16} [BC Builders] (buildcraft-7.1.16.jar)
UCHIJAA BuildCraft|Transport{7.1.16} [BC Transport] (buildcraft-7.1.16.jar)
UCHIJAA BuildCraft|Energy{7.1.16} [BC Energy] (buildcraft-7.1.16.jar)
UCHIJAA BuildCraft|Silicon{7.1.16} [BC Silicon] (buildcraft-7.1.16.jar)
UCHIJAA BuildCraft|Robotics{7.1.16} [BC Robotics] (buildcraft-7.1.16.jar)
UCHIJAA BuildCraft|Factory{7.1.16} [BC Factory] (buildcraft-7.1.16.jar)
UCHIJAA ExtraUtilities{1.2.12} [Extra Utilities] (extrautilities-1.2.12.jar)
UCHIJAA flansmod{4.10.0} [Flan's Mod] (Flans Mod-1.7.10-4.10.0.jar)
UCHIJAA grapplemod{1.7.10-v5} [grapplemod] (grapplemod-v6-1.7.10.jar)
UCHIJAA iChunUtil{4.2.2} [iChunUtil] (iChunUtil-4.2.2.jar)
UCHIJAA IronChest{6.0.60.741} [Iron Chest] (ironchest-1.7.10-6.0.60.741-universal.jar)
UCHIJAA lance{2.6.1.1710} [Lance Mod] (Lance-Mod-1.7.10.jar)
UCHIJAA Mantle{1.7.10-0.3.2.jenkins191} [Mantle] (Mantle-1.7.10-0.3.2b.jar)
UCHIJAA Morph{0.9.2} [Morph] (Morph-Beta-0.9.2.jar)
UCHIJAA RadixCore{2.1.1} [RadixCore] (RadixCore-1.7.10-2.1.1-universal.jar)
UCHIJAA ReiMinimap{1.7.10} [Rei's Minimap] (Reis-Minimap-Mod-1.7.10.jar)
UCHIJAA RopesPlus{1.6.4} [Ropes+] (RopePlus-1.7.10.jar)
UCHIJAA Waila{1.5.10} [Waila] (Waila-1.5.10_1.7.10.jar)
GL info: ~~ERROR~~ RuntimeException: No OpenGL context found in the current thread.
Mantle Environment: Environment healthy.
Profiler Position: N/A (disabled)
Vec3 Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
Player Count: 0 / 8; []
Type: Integrated Server (map_client.txt)
Is Modded: Definitely; Client brand changed to 'fml,forge'