[07:43:11] [Orebfuscator Processing Thread/ERROR]: [OFC] java.util.ConcurrentModificationException
[07:43:11] [Orebfuscator Processing Thread/WARN]: java.util.ConcurrentModificationException
[07:43:11] [Orebfuscator Processing Thread/WARN]: 	at java.util.ArrayList$Itr.checkForComodification(ArrayList.java:859)
[07:43:11] [Orebfuscator Processing Thread/WARN]: 	at java.util.ArrayList$Itr.next(ArrayList.java:831)
[07:43:11] [Orebfuscator Processing Thread/WARN]: 	at net.minecraft.server.v1_7_R3.World.getType(World.java:313)
[07:43:11] [Orebfuscator Processing Thread/WARN]: 	at net.minecraft.server.v1_7_R3.World.getType(World.java:304)
[07:43:11] [Orebfuscator Processing Thread/WARN]: 	at net.minecraft.server.v1_7_R3.WorldServer.getTypeId(WorldServer.java:1038)
[07:43:11] [Orebfuscator Processing Thread/WARN]: 	at org.bukkit.craftbukkit.v1_7_R3.CraftWorld.getBlockTypeIdAt(CraftWorld.java:89)
[07:43:11] [Orebfuscator Processing Thread/WARN]: 	at com.lishid.orebfuscator.obfuscation.Calculations.areAjacentBlocksTransparent(Calculations.java:584)
[07:43:11] [Orebfuscator Processing Thread/WARN]: 	at com.lishid.orebfuscator.obfuscation.Calculations.areAjacentBlocksTransparent(Calculations.java:607)
[07:43:11] [Orebfuscator Processing Thread/WARN]: 	at com.lishid.orebfuscator.obfuscation.Calculations.Obfuscate(Calculations.java:367)
[07:43:11] [Orebfuscator Processing Thread/WARN]: 	at com.lishid.orebfuscator.obfuscation.Calculations.ComputeChunkInfoAndObfuscate(Calculations.java:229)
[07:43:11] [Orebfuscator Processing Thread/WARN]: 	at com.lishid.orebfuscator.obfuscation.Calculations.Obfuscate(Calculations.java:107)
[07:43:11] [Orebfuscator Processing Thread/WARN]: 	at com.lishid.orebfuscator.hook.ChunkProcessingThread.run(ChunkProcessingThread.java:106)