Pasted

Forge Mod Loader version 7.10.88.1307 for Minecraft 1.7.10
 
java.util.ConcurrentModificationException
    at java.util.LinkedList$ListItr.checkForComodification(Unknown Source) ~[?:1.8.0_31]
    at java.util.LinkedList$ListItr.remove(Unknown Source) ~[?:1.8.0_31]
    at cofh.thermaldynamics.multiblock.MultiBlockGridWithRoutes.doTickProcessing(MultiBlockGridWithRoutes.java:21) ~[MultiBlockGridWithRoutes.class:?]
    at cofh.thermaldynamics.core.WorldGridList.tickEnd(WorldGridList.java:72) ~[WorldGridList.class:?]
    at cofh.thermaldynamics.core.TickHandler.tick(TickHandler.java:85) ~[TickHandler.class:?]
    at cpw.mods.fml.common.eventhandler.ASMEventHandler_1060_TickHandler_tick_WorldTickEvent.invoke(.dynamic) ~[?:?]
    at cpw.mods.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:54) ~[ASMEventHandler.class:?]
    at cpw.mods.fml.common.eventhandler.EventBus.post(EventBus.java:138) ~[EventBus.class:?]
    at cpw.mods.fml.common.FMLCommonHandler.onPostWorldTick(FMLCommonHandler.java:255) ~[FMLCommonHandler.class:?]
    at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:645) ~[MinecraftServer.class:?]
    at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:547) ~[MinecraftServer.class:?]
    at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:111) ~[bsx.class:?]
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:427) [MinecraftServer.class:?]
    at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:685) [?:?]