I need help with this freeze

[lackos888]

Hi. My Tekkit Classic 3.1.2 server randomly freeze, with this error:

 

08.04 15:27:00 [Multicraft] Skipped 1 lines due to rate limit (50/s)
08.04 15:26:36 [server] INFO at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:467)
08.04 15:26:36 [server] INFO at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:569)
08.04 15:26:36 [server] INFO at net.minecraft.server.World.tickEntities(World.java:1190)
08.04 15:26:36 [server] INFO at eloraam.logic.TileLogicPointer.q_(TileLogicPointer.java:413)
08.04 15:26:36 [server] INFO at eloraam.logic.TileLogicPointer.timerUpdate(TileLogicPointer.java:219)
08.04 15:26:36 [server] INFO at eloraam.core.TileExtended.updateBlockChange(TileExtended.java:98)
08.04 15:26:36 [server] INFO at eloraam.core.RedPowerLib.updateIndirectNeighbors(RedPowerLib.java:48)
08.04 15:26:36 [server] INFO at eloraam.core.RedPowerLib.notifyBlock(RedPowerLib.java:25)
08.04 15:26:36 [server] INFO at eloraam.core.BlockMultipart.doPhysics(BlockMultipart.java:29)
08.04 15:26:36 [server] INFO at eloraam.wiring.TileWiring.onBlockNeighborChange(TileWiring.java:243)
08.04 15:26:36 [server] INFO at eloraam.core.RedPowerLib.updateCurrent(RedPowerLib.java:1220)
08.04 15:26:36 [server] INFO at eloraam.core.RedPowerLib.notifyBlock(RedPowerLib.java:25)
08.04 15:26:36 [server] INFO at eloraam.core.BlockMultipart.doPhysics(BlockMultipart.java:29)
08.04 15:26:36 [server] INFO at eloraam.logic.TileLogicPointer.onBlockNeighborChange(TileLogicPointer.java:338)
08.04 15:26:36 [server] INFO at eloraam.logic.TileLogicPointer.timerChange(TileLogicPointer.java:74)
08.04 15:26:36 [server] INFO at eloraam.core.RedPowerLib.getRotPowerState(RedPowerLib.java:442)
08.04 15:26:36 [server] INFO at eloraam.core.RedPowerLib.getPowerState(RedPowerLib.java:418)
08.04 15:26:36 [server] INFO at eloraam.core.RedPowerLib.getSidePowerMask(RedPowerLib.java:372)
08.04 15:26:36 [server] INFO at eloraam.core.CoreLib.getTileEntity(CoreLib.java:84)
08.04 15:26:36 [server] INFO at net.minecraft.server.WorldServer.getTileEntity(WorldServer.java:45)
08.04 15:26:36 [server] INFO at net.minecraft.server.World.getTileEntity(World.java:1644)
08.04 15:26:36 [server] INFO at java.util.ArrayList$Itr.next(Unknown Source)
08.04 15:26:36 [server] INFO at java.util.ArrayList$Itr.checkForComodification(Unknown Source)
08.04 15:26:36 [server] INFO java.util.ConcurrentModificationException
08.04 15:26:36 [server] SEVERE Unexpected exception
08.04 15:26:36 [server] SEVERE at net.minecraft.server.ThreadServerApplication.run(SourceFile:492)
08.04 15:26:36 [server] SEVERE at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:467)
08.04 15:26:36 [server] SEVERE at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:569)
08.04 15:26:36 [server] SEVERE at net.minecraft.server.World.tickEntities(World.java:1190)
08.04 15:26:36 [server] SEVERE at eloraam.logic.TileLogicPointer.q_(TileLogicPointer.java:413)
08.04 15:26:36 [server] SEVERE at eloraam.logic.TileLogicPointer.timerUpdate(TileLogicPointer.java:219)
08.04 15:26:36 [server] SEVERE at eloraam.core.TileExtended.updateBlockChange(TileExtended.java:98)
08.04 15:26:36 [server] SEVERE at eloraam.core.RedPowerLib.updateIndirectNeighbors(RedPowerLib.java:48)
08.04 15:26:36 [server] SEVERE at eloraam.core.RedPowerLib.notifyBlock(RedPowerLib.java:25)
08.04 15:26:36 [server] SEVERE at eloraam.core.BlockMultipart.doPhysics(BlockMultipart.java:29)
08.04 15:26:36 [server] SEVERE at eloraam.wiring.TileWiring.onBlockNeighborChange(TileWiring.java:243)
08.04 15:26:36 [server] SEVERE at eloraam.core.RedPowerLib.updateCurrent(RedPowerLib.java:1220)
08.04 15:26:36 [server] SEVERE at eloraam.core.RedPowerLib.notifyBlock(RedPowerLib.java:25)
08.04 15:26:36 [server] SEVERE at eloraam.core.BlockMultipart.doPhysics(BlockMultipart.java:29)
08.04 15:26:36 [server] SEVERE at eloraam.logic.TileLogicPointer.onBlockNeighborChange(TileLogicPointer.java:338)
08.04 15:26:36 [server] SEVERE at eloraam.logic.TileLogicPointer.timerChange(TileLogicPointer.java:74)
08.04 15:26:36 [server] SEVERE at eloraam.core.RedPowerLib.getRotPowerState(RedPowerLib.java:442)
08.04 15:26:36 [server] SEVERE at eloraam.core.RedPowerLib.getPowerState(RedPowerLib.java:418)
08.04 15:26:36 [server] SEVERE at eloraam.core.RedPowerLib.getSidePowerMask(RedPowerLib.java:372)
08.04 15:26:36 [server] SEVERE at eloraam.core.CoreLib.getTileEntity(CoreLib.java:84)
08.04 15:26:36 [server] SEVERE at net.minecraft.server.WorldServer.getTileEntity(WorldServer.java:45)
08.04 15:26:36 [server] SEVERE at net.minecraft.server.World.getTileEntity(World.java:1644)
08.04 15:26:36 [server] SEVERE at java.util.ArrayList$Itr.next(Unknown Source)
08.04 15:26:36 [server] SEVERE at java.util.ArrayList$Itr.checkForComodification(Unknown Source)
08.04 15:26:36 [server] SEVERE java.util.ConcurrentModificationException

 

I have no idea, why my server freezing, and why the RedPower sucks. Any idea?

 

If i'm created the topic in the wrong section, please move it.