CrashBits

Please Help for this error im don't know because this problem occurs java.util.ConcurrentModificationException at com.google.common.collect.HashBiMap$Itr.checkForConcurrentModification(HashBiMap.java:339) at com.google.common.collect.HashBiMap$Itr.hasNext(HashBiMap.java:345) at net.minecraft.client.audio.SoundManager.func_148610_e(SoundManager.java:428) at net.minecraft.client.audio.SoundHandler.func_147689_b(SourceFile:182) at net.minecraft.client.Minecraft.func_71385_j(Minecraft.java:1377) at net.minecraft.client.Minecraft.func_71407_l(Minecraft.java:1821) at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:1022) at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:345) at net.minecraft.client.main.Main.main(SourceFile:120) 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)

Only I have the following mods Damage Indicators Auto-Sapling Code-ChickenCore Not-Enough-Items Optifine 1.8.0_HD_U_C6 Ruins SAO_UI1.5 ShaderMod-v2.4.7 Xaeros-Minimap I have a crash when I start to break redstone ore :'( [14:15:31] [Client thread/INFO]: Setting user: CrashBits [14:15:37] [Client thread/INFO]: LWJGL Version: 2.9.1 [14:15:54] [Client thread/INFO]: Reloading ResourceManager: Default, FMLFileResourcePack:Forge Mod Loader, FMLFileResourcePack:Minecraft Forge, FMLFileResourcePack:Not Enough Items, FMLFileResourcePack:Damage Indicators, FMLFileResourcePack:Ruins Spawning System, FMLFileResourcePack:Sword Art Online UI, §1§lMusica de §6§lRecords.zip, Custom Sky [14:15:56] [sound Library Loader/INFO]: Starting up SoundSystem... [14:15:56] [Thread-10/INFO]: Initializing LWJGL OpenAL [14:15:56] [Thread-10/INFO]: (The LWJGL binding of OpenAL. For more information, see http://www.lwjgl.org) [14:15:56] [Thread-10/INFO]: OpenAL initialized. [14:15:56] [sound Library Loader/INFO]: Sound engine started [14:16:28] [Client thread/INFO]: Created: 512x512 textures-atlas [14:16:32] [Client thread/INFO]: Reloading ResourceManager: Default, FMLFileResourcePack:Forge Mod Loader, FMLFileResourcePack:Minecraft Forge, FMLFileResourcePack:Not Enough Items, FMLFileResourcePack:Damage Indicators, FMLFileResourcePack:Ruins Spawning System, FMLFileResourcePack:Sword Art Online UI, §1§lMusica de §6§lRecords.zip, Custom Sky [14:16:32] [Client thread/INFO]: SoundSystem shutting down... [14:16:32] [Client thread/WARN]: Author: Paul Lamb, www.paulscode.com [14:16:32] [sound Library Loader/INFO]: Starting up SoundSystem... [14:16:32] [Thread-15/INFO]: Initializing LWJGL OpenAL [14:16:32] [Thread-15/INFO]: (The LWJGL binding of OpenAL. For more information, see http://www.lwjgl.org) [14:16:33] [Thread-15/INFO]: OpenAL initialized. [14:16:33] [sound Library Loader/INFO]: Sound engine started [14:16:47] [Client thread/INFO]: Created: 512x512 textures-atlas [14:16:56] [server thread/INFO]: Starting integrated minecraft server version 1.8 [14:16:56] [server thread/INFO]: Generating keypair [14:16:57] [server thread/INFO]: Preparing start region for level 0 [14:16:58] [server thread/INFO]: Preparing spawn area: 29% [14:16:59] [server thread/INFO]: Preparing spawn area: 89% [14:17:00] [server thread/INFO]: Changing view distance to 9, from 10 [14:17:01] [server thread/INFO]: CrashBits[local:E:5f36f1f2] logged in with entity id 7 at (27.0372208602597, 67.09739405603352, -21.754217362233675) [14:17:01] [server thread/INFO]: CrashBits ha entrado a la partida [14:17:06] [Client thread/INFO]: [CHAT] Damage Indicators v.3.3.3.0 is up to date. [14:17:06] [Client thread/INFO]: [CHAT] Damage Indicators v.3.3.3.0 is up to date. [14:17:48] [server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 2210ms behind, skipping 44 tick(s) [14:18:09] [server thread/INFO]: Saving and pausing game... [14:18:09] [server thread/INFO]: Saving chunks for level '§6§lDungeon Map By §4§lCrash§1§lBits'/Overworld [14:18:09] [server thread/INFO]: Saving chunks for level '§6§lDungeon Map By §4§lCrash§1§lBits'/Nether [14:18:09] [server thread/INFO]: Saving chunks for level '§6§lDungeon Map By §4§lCrash§1§lBits'/The End [14:19:07] [server thread/INFO]: Stopping server [14:19:07] [server thread/INFO]: Saving players [14:19:07] [server thread/INFO]: Saving worlds [14:19:07] [server thread/INFO]: Saving chunks for level '§6§lDungeon Map By §4§lCrash§1§lBits'/Overworld [14:19:07] [server thread/INFO]: Saving chunks for level '§6§lDungeon Map By §4§lCrash§1§lBits'/Nether [14:19:07] [server thread/INFO]: Saving chunks for level '§6§lDungeon Map By §4§lCrash§1§lBits'/The End [14:19:08] [Client thread/FATAL]: Unreported exception thrown! java.util.ConcurrentModificationException at com.google.common.collect.HashBiMap$Itr.checkForConcurrentModification(HashBiMap.java:339) ~[guava-17.0.jar:?] at com.google.common.collect.HashBiMap$Itr.hasNext(HashBiMap.java:345) ~[guava-17.0.jar:?] at net.minecraft.client.audio.SoundManager.func_148610_e(SoundManager.java:428) ~[cza.class:?] at net.minecraft.client.audio.SoundHandler.func_147689_b(SourceFile:182) ~[czh.class:?] at net.minecraft.client.Minecraft.func_71385_j(Minecraft.java:1377) ~[bsu.class:?] at net.minecraft.client.Minecraft.func_71407_l(Minecraft.java:1821) ~[bsu.class:?] at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:1022) ~[bsu.class:?] at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:345) [bsu.class:?] at net.minecraft.client.main.Main.main(SourceFile:120) [Main.class:?] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_25] at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_25] at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_25] at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_25] 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:?]