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i keep crashing and getting this error and i hope there is a fix

(been a while nd i forgot how to do spoiler so sorry for the length)

---- Minecraft Crash Report ----
// Sorry

Time: 11/10/14 9:40 PM
Description: Unexpected error

java.util.ConcurrentModificationException
at java.util.HashMap$HashIterator.nextEntry(Unknown Source)
at java.util.HashMap$KeyIterator.next(Unknown Source)
at net.minecraft.nbt.NBTTagCompound.func_74737_b(SourceFile:288)
at net.minecraft.item.ItemStack.func_77946_l(ItemStack.java:333)
at codechicken.lib.inventory.InventoryUtils.copyStack(InventoryUtils.java:153)
at codechicken.lib.inventory.InventoryUtils.getInsertibleQuantity(InventoryUtils.java:163)
at codechicken.nei.NEIClientUtils.canItemFitInInventory(NEIClientUtils.java:190)
at codechicken.nei.ClientHandler.updateMagnetMode(ClientHandler.java:65)
at codechicken.nei.ClientHandler.tickEvent(ClientHandler.java:145)
at cpw.mods.fml.common.eventhandler.ASMEventHandler_323_ClientHandler_tickEvent_ClientTickEvent.invoke(.dynamic)
at cpw.mods.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:54)
at cpw.mods.fml.common.eventhandler.EventBus.post(EventBus.java:138)
at cpw.mods.fml.common.FMLCommonHandler.onPreClientTick(FMLCommonHandler.java:325)
at net.minecraft.client.Minecraft.func_71407_l(Minecraft.java:1576)
at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:962)
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:887)
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)


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

-- Head --
Stacktrace:
at java.util.HashMap$HashIterator.nextEntry(Unknown Source)
at java.util.HashMap$KeyIterator.next(Unknown Source)
at net.minecraft.nbt.NBTTagCompound.func_74737_b(SourceFile:288)
at net.minecraft.item.ItemStack.func_77946_l(ItemStack.java:333)
at codechicken.lib.inventory.InventoryUtils.copyStack(InventoryUtils.java:153)
at codechicken.lib.inventory.InventoryUtils.getInsertibleQuantity(InventoryUtils.java:163)
at codechicken.nei.NEIClientUtils.canItemFitInInventory(NEIClientUtils.java:190)
at codechicken.nei.ClientHandler.updateMagnetMode(ClientHandler.java:65)
at codechicken.nei.ClientHandler.tickEvent(ClientHandler.java:145)
at cpw.mods.fml.common.eventhandler.ASMEventHandler_323_ClientHandler_tickEvent_ClientTickEvent.invoke(.dynamic)
at cpw.mods.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:54)
at cpw.mods.fml.common.eventhandler.EventBus.post(EventBus.java:138)
at cpw.mods.fml.common.FMLCommonHandler.onPreClientTick(FMLCommonHandler.java:325)

-- Affected level --
Details:
Level name: MpServer
All players: 1 total; [EntityClientPlayerMP['Noctiferous7'/51, l='MpServer', x=147.47, y=65.62, z=-2.54]]
Chunk stats: MultiplayerChunkCache: 625, 625
Level seed: 0
Level generator: ID 00 - default, ver 1. Features enabled: false
Level generator options:
Level spawn location: World: (144,64,-4), Chunk: (at 0,4,12 in 9,-1; contains blocks 144,0,-16 to 159,255,-1), Region: (0,-1; contains chunks 0,-32 to 31,-1, blocks 0,0,-512 to 511,255,-1)
Level time: 255156 game time, 288460 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: survival (ID 0). Hardcore: false. Cheats: false
Forced entities: 34 total; [EntitySquid['Squid'/28209, l='MpServer', x=181.38, y=61.34, z=-47.69], EntityItemAltar['item.item.extendedWorkbench.tool13'/23, l='MpServer', x=104.50, y=64.14, z=8.50], EntitySquid['Squid'/27655, l='MpServer', x=88.09, y=50.34, z=-40.06], EntityItemAltar['item.item.extendedWorkbench.tool23'/24, l='MpServer', x=104.50, y=64.14, z=4.50], EntitySquid['Squid'/28189, l='MpServer', x=105.06, y=53.16, z=-37.09], EntityGoblin['Hobgoblin'/36, l='MpServer', x=160.63, y=38.00, z=-1.97], EntitySquid['Squid'/28188, l='MpServer', x=107.94, y=54.38, z=-42.91], EntityClientPlayerMP['Noctiferous7'/51, l='MpServer', x=147.47, y=65.62, z=-2.54], EntitySquid['Squid'/27728, l='MpServer', x=84.97, y=52.13, z=23.63], EntitySquid['Squid'/27727, l='MpServer', x=85.94, y=50.63, z=28.59], EntityBat['Bat'/34805, l='MpServer', x=189.07, y=19.71, z=6.29], EntitySquid['Squid'/27784, l='MpServer', x=181.72, y=61.34, z=-31.16], EntitySquid['Squid'/27812, l='MpServer', x=198.41, y=50.38, z=-56.13], EntitySquid['Squid'/27315, l='MpServer', x=186.91, y=47.22, z=55.72], EntitySquid['Squid'/27283, l='MpServer', x=177.34, y=50.34, z=45.63], EntitySquid['Squid'/27279, l='MpServer', x=177.44, y=53.31, z=42.16], EntityTrail['unknown'/279, l='MpServer', x=147.47, y=65.62, z=-2.54], EntityItem['item.item.misc.bat_wing'/22243, l='MpServer', x=164.13, y=12.13, z=-3.19], EntitySquid['Squid'/27438, l='MpServer', x=210.97, y=49.16, z=27.63], EntitySquid['Squid'/27436, l='MpServer', x=204.63, y=53.31, z=36.09], EntityBat['Bat'/35563, l='MpServer', x=150.83, y=14.00, z=57.89], EntityBat['Bat'/28489, l='MpServer', x=162.53, y=41.10, z=5.25], EntitySquid['Squid'/28053, l='MpServer', x=112.19, y=46.34, z=58.81], EntityBat['Bat'/5369, l='MpServer', x=146.69, y=40.10, z=9.63], EntitySquid['Squid'/28078, l='MpServer', x=88.22, y=58.19, z=-64.25], EntitySquid['Squid'/14971, l='MpServer', x=180.41, y=46.34, z=5.56], EntityBat['Bat'/28566, l='MpServer', x=157.50, y=38.81, z=9.35], EntityBat['Bat'/28567, l='MpServer', x=143.75, y=41.10, z=10.72], EntitySquid['Squid'/28081, l='MpServer', x=97.09, y=58.38, z=-57.25], EntityBat['Bat'/28569, l='MpServer', x=145.97, y=40.10, z=10.75], EntityBat['Bat'/28570, l='MpServer', x=147.07, y=41.75, z=9.88], EntitySquid['Squid'/27520, l='MpServer', x=103.13, y=60.34, z=-17.59], EntitySquid['Squid'/28140, l='MpServer', x=156.44, y=45.69, z=26.22], EntitySquid['Squid'/27526, l='MpServer', x=94.72, y=60.34, z=-23.38]]
Retry entities: 0 total; []
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: 1.7.0_60, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 746725032 bytes (712 MB) / 1926758400 bytes (1837 MB) up to 7635730432 bytes (7282 MB)
JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx8G
AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
IntCache: cache: 0, tcache: 0, allocated: 12, tallocated: 96
FML: MCP v9.05 FML v7.10.85.1235 Minecraft Forge 10.13.2.1235 62 mods loaded, 62 mods active
mcp{9.05} [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
FML{7.10.85.1235} [Forge Mod Loader] (forge-1.7.10-10.13.2.1235.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Forge{10.13.2.1235} [Minecraft Forge] (forge-1.7.10-10.13.2.1235.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Aroma1997Core{1.0.2.11} [Aroma1997Core] (Aroma1997Core-1.7.10-1.0.2.11.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
CodeChickenCore{1.0.2.9} [CodeChicken Core] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
NotEnoughItems{1.0.2.15} [Not Enough Items] (NotEnoughItems-1.7.10-1.0.2.15-universal.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
backpacks16840{3.0.1} [Backpacks!] (zz-backpacks 1.7.10 - 3.0.1.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
battlegear2{1.0.6.2} [Mine & Blade Battlegear 2 - Bullseye] (1.7.10-MB_Battlegear2-Bullseye-1.0.6.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
DC1{3.4.2.19} [KingCore] ([1.7.2+] KingCore v3.4.2.19.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
AS1{3.2.1.26} [Arcane Scrolls] ([1.7.10] ArcaneScrolls v3.2.1.26.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
DamageIndicatorsMod{3.2.0} [Damage Indicators] ([1.7.10]DamageIndicatorsMod-3.2.0.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
extendedWorkbench{1.2.1.0} [Extended Workbench] ([1.7.10]ExtendedWorkbench v1.2.1.0.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
FishingNets{1.2.1.5} [Fishing Nets] ([1.7.10M] FishingNets v1.2.1.5.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
EB{2.1.2.6} [Ender Book] ([1.7.2] EnderBook v2.1.2.6.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
bspkrsCore{6.14} [bspkrsCore] ([1.7.10]bspkrsCore-universal-6.14.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Treecapitator{1.7.2} [Treecapitator] ([1.7.2]Treecapitator-universal-2.0.3.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
StoneArmour{1.0.0.1} [Stone Armour] ([1.7.2M] StoneArmour v1.0.0.1.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
AppleCore{1.0.1} [AppleCore] (AppleCore-mc1.7.10-1.0.1.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Aroma1997CoreHelper{1.0.2.11} [Aroma1997Core|Helper] (Aroma1997Core-1.7.10-1.0.2.11.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
iChunUtil{4.0.0} [iChunUtil] (iChunUtil-4.0.0.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Grinder{4.0.0} [Grinder] (AttachableGrinder-4.0.0.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Backpack{2.0.1} [Backpack] (backpack-2.0.1-1.7.x.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
kegare.bedrocklayer{1.0.8} [BedrockLayer] (BedrockLayer_1.7.2-v1.0.8.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
BetterChests{1.1.1.7} [BetterChests] (BetterChests-1.7.10-1.1.1.7.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
betterstorage{0.10.4.117} [BetterStorage] (BetterStorage-1.7.10-0.10.4.117.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
BiblioCraft{1.9.0} [BiblioCraft] (BiblioCraft[v1.9.0][MC1.7.10].jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
BuildCraft|Core{6.1.8} [BuildCraft] (buildcraft-6.1.8.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
BuildCraft|Builders{6.1.8} [BC Builders] (buildcraft-6.1.8.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
BuildCraft|Energy{6.1.8} [BC Energy] (buildcraft-6.1.8.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
BuildCraft|Factory{6.1.8} [BC Factory] (buildcraft-6.1.8.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
BuildCraft|Transport{6.1.8} [BC Transport] (buildcraft-6.1.8.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
BuildCraft|Silicon{6.1.8} [BC Silicon] (buildcraft-6.1.8.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
gud_cooler{1.1.5.0} [Coolers] (cooler-1.7.10-1.1.5.0.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
customnpcs{1.7.10b} [CustomNpcs] (CustomNPCs_1.7.10b.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
dualhotbar{1.5.1} [Dual Hotbar] (dualhotbar-1.7.10-1.5.1.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
dynamictanks{1.0} [Dynamic Liquid Tanks 2.1] (dynamictanks-1.1.03.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
eplus{3.0.2-d} [Enchanting Plus] (EnchantingPlus-1.7.10-3.0.2-d.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
EnderStorage{1.4.4.6} [EnderStorage] (EnderStorage-1.7.10-1.4.4.6-universal.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
HardcoreEnderExpansion{1.6.4} [Hardcore Ender Expansion] (HardcoreEnderExpansion MC-1.7.10 v1.6.4.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
HungerInPeace{1.0.0} [Hunger In Peace] (HungerInPeace-mc1.7.10-1.0.0.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
ImmibisCore{59.0.4} [Immibis Core] (immibis-core-59.0.4.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
journeymap{5.0.0RC4} [JourneyMap] (JourneyMap5.0.0RC4_Unlimited_MC1.7.10.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
levelup{0.7} [Level Up!] (LevelUp!-0.7(1.7.10).jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
LotsOfFood{1.7.10} [Lots of Food] (Lots of Food-1.7.10 v4.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Mantle{1.7.10-0.3.2.jenkins184} [Mantle] (Mantle-1.7.10-0.3.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
MetallurgyCore{4.0.4} [Metallurgy Core] (MetallurgyCore-1.7.10-4.0.4.18.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
TConstruct{1.7.10-1.7.1.build771} [Tinkers' Construct] (TConstruct-1.7.10-1.7.1c.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Metallurgy{4.0.6} [Metallurgy 4] (Metallurgy-1.7.10-4.0.6.80.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
mfm{2.2.2} [Mo' Furnaces Mod] (mfm-1.7.10-2.2.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
MoreFurnaces{1.3.8} [More Furnaces] (MoreFurnaces-1.3.8-MC1.7.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
moreplayermodels{1.7.10b} [MorePlayerModels] (MorePlayerModels_1.7.10b.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Morph{0.9.1} [Morph] (Morph-Beta-0.9.1.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
MSM3{3.0.0d} [More Swords 3] (MSM-SNAP-3.0.0e-For-MC-1.7.10.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
MultiPageChest{1.3.2} [Multi Page Chest] (MultiPageChest-1.3.2-MC1.7.10.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Mystcraft{0.11.0.00} [Mystcraft] (mystcraft-1.7.10-0.11.0.00.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
harvestcraft{1.7.10b} [Pam's HarvestCraft] (Pam's HarvestCraft 1.7.10c.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
PetBat{1.3.6} [Pet Bat] (PetBat-1.7.10.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Amnesia{1.0.0} [The Amnesia Mod] (The Amnesia Mod-1.7.10-1.0.0.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
thirstmod{1.8.8} [Thirst Mod] (thirstmod-1.8.8.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Tubestuff{59.0.1} [Tubestuff] (tubestuff-59.0.1.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
weaponmod{v1.14.3} [Balkon's WeaponMod] (weaponmod-1.14.3.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
witchery{0.20.6} [Witchery] (witchery-1.7.10-0.20.6.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Mantle Environment: Environment healthy.
TConstruct Environment: Environment healthy.
Launched Version: 1.7.10-Forge10.13.2.1235
LWJGL: 2.9.1
OpenGL: Intel(R) HD Graphics 4600 GL version 4.2.0 - Build 10.18.10.3345, Intel
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)