GregTech Rus Minecraft Сервер

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java.util.ConcurrentModificationException
at java.util.TreeMap$PrivateEntryIterator.nextEntry(TreeMap.java:1115)
at java.util.TreeMap$ValueIterator.next(TreeMap.java:1160)
at appeng.util.item.MeanfulIterator.hasNext(MeanfulIterator.java:22)
at appeng.crafting.MECraftingInventory.<init>(MECraftingInventory.java:92)
at appeng.crafting.CraftingJob.<init>(CraftingJob.java:80)
at appeng.me.cache.CraftingGridCache.beginCraftingJob(CraftingGridCache.java:548)
at appeng.helpers.MultiCraftingTracker.handleCrafting(MultiCraftingTracker.java:102)
at appeng.parts.automation.PartExportBus.doBusWork(PartExportBus.java:217)
at appeng.parts.automation.PartExportBus.tickingRequest(PartExportBus.java:303)
at appeng.me.cache.TickManagerCache.onUpdateTick(TickManagerCache.java:70)
at appeng.me.GridCacheWrapper.onUpdateTick(GridCacheWrapper.java:22)
at appeng.me.Grid.update(Grid.java:207)
at appeng.hooks.TickHandler.onTick(TickHandler.java:244)
at cpw.mods.fml.common.eventhandler.ASMEventHandler_91_TickHandler_onTick_TickEvent.invoke(.dynamic)
at cpw.mods.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:54)
at cpw.mods.fml.common.eventhandler.EventBus.post(EventBus.java:139)
at cpw.mods.fml.common.FMLCommonHandler.onPostServerTick(FMLCommonHandler.java:247)
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:590)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:427)
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:
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-- Head --
Stacktrace:
at java.util.TreeMap$PrivateEntryIterator.nextEntry(TreeMap.java:1115)
at java.util.TreeMap$ValueIterator.next(TreeMap.java:1160)
at appeng.util.item.MeanfulIterator.hasNext(MeanfulIterator.java:22)
at appeng.crafting.MECraftingInventory.<init>(MECraftingInventory.java:92)
at appeng.crafting.CraftingJob.<init>(CraftingJob.java:80)
at appeng.me.cache.CraftingGridCache.beginCraftingJob(CraftingGridCache.java:548)
at appeng.helpers.MultiCraftingTracker.handleCrafting(MultiCraftingTracker.java:102)
at appeng.parts.automation.PartExportBus.doBusWork(PartExportBus.java:217)
at appeng.parts.automation.PartExportBus.tickingRequest(PartExportBus.java:303)

-- PartExportBus being ticked. --
Details:
Part Side: SOUTH
CurrentTickRate: 5
MinTickRate: 5
MaxTickRate: 60
MachineType: appeng.parts.automation.PartExportBus
GridBlockType: appeng.me.helpers.AENetworkProxy
ConnectedSides: [UNKNOWN]
Location: 0,-99,59,41
Stacktrace:
at appeng.me.cache.TickManagerCache.onUpdateTick(TickManagerCache.java:70)
at appeng.me.GridCacheWrapper.onUpdateTick(GridCacheWrapper.java:22)
at appeng.me.Grid.update(Grid.java:207)
at appeng.hooks.TickHandler.onTick(TickHandler.java:244)
at cpw.mods.fml.common.eventhandler.ASMEventHandler_91_TickHandler_onTick_TickEvent.invoke(.dynamic)
at cpw.mods.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:54)
at cpw.mods.fml.common.eventhandler.EventBus.post(EventBus.java:139)
at cpw.mods.fml.common.FMLCommonHandler.onPostServerTick(FMLCommonHandler.java:247)
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:590)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:427)
at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:685)