02-16 22:49:16 [SEVERE] [TickThreading] Exception ticking entity EntityNPCElfMale['[1] Арбузник'/754, l='world', x=145.50, y=41.42, z=604.50] in rX: 2, rZ: 9, hashCode: 589826/Overworld/0:
java.util.ConcurrentModificationException
        at java.util.LinkedHashMap$LinkedHashIterator.nextNode(LinkedHashMap.java:719)
        at java.util.LinkedHashMap$LinkedEntryIterator.next(LinkedHashMap.java:752)
        at java.util.LinkedHashMap$LinkedEntryIterator.next(LinkedHashMap.java:750)
        at org.bukkit.configuration.MemorySection.mapChildrenValues(MemorySection.java:729)
        at org.bukkit.configuration.MemorySection.getValues(MemorySection.java:96)
        at org.bukkit.configuration.file.YamlConfiguration.saveToString(YamlConfiguration.java:38)
        at org.bukkit.configuration.file.FileConfiguration.save(FileConfiguration.java:54)
        at noppes.npcs.YamlConfig.save(YamlConfig.java:30)
        at noppes.npcs.EntityNPCInterface.reset(EntityNPCInterface.java:1087)
        at noppes.npcs.EntityNPCInterface.func_70609_aI(EntityNPCInterface.java:1052)
        at net.minecraft.entity.EntityLivingBase.func_70030_z(EntityLivingBase.java:361)
        at net.minecraft.entity.EntityLiving.func_70030_z(EntityLiving.java:206)
        at net.minecraft.entity.Entity.func_70071_h_(Entity.java:537)
        at net.minecraft.entity.EntityLivingBase.func_70071_h_(EntityLivingBase.java:1928)
        at net.minecraft.entity.EntityLiving.func_70071_h_(EntityLiving.java:264)
        at net.minecraft.world.World.func_72866_a(World.java:387)
        at net.minecraft.world.WorldServer.func_72866_a(WorldServer.java:1006)
        at net.minecraft.world.World.func_72870_g(World.java:2890)
        at nallar.tickthreading.minecraft.tickregion.EntityTickRegion.doTick(EntityTickRegion.java:61)
        at nallar.tickthreading.minecraft.tickregion.TickRegion.run(TickRegion.java:36)
        at nallar.tickthreading.minecraft.ThreadManager$DelayableRunnable.run(ThreadManager.java:188)
        at nallar.tickthreading.minecraft.ThreadManager$1.run(ThreadManager.java:40)
        at nallar.tickthreading.util.FakeServerThread.run(FakeServerThread.java:16)