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:?]