BTFU CME

mods.txt

Baubles-1.9.4-1.2.1.0.jar
BiomesOPlenty-1.9.4-4.1.0.2065-universal.jar
Botania-unofficial.r1.8-315.jar
BTFU-1.9.4-1.5.jar
Chameleon-1.9.4-2.1.6.jar
Chisel-MC1.9.4-0.0.6.33.jar
chiselsandbits-11.7.jar
deepresonance-1.10-1.2.0beta36.jar
DiscordChat-1.10.2-1.4.0.jar
ElecCore-1.9.4-1.5.292.jar
EnderCore-1.10.2-0.4.1.47-beta.jar
EnderIO-1.10.2-3.0.1.86_beta.jar
enderutilities-1.10.2-0.6.5.jar
Flamingo-1.9.4-1.8.jar
flatcoloredblocks-mc1.10-v4.1.jar
forestry_1.10.2-5.2.7.220.jar
jei_1.10.2-3.7.11.238.jar
Mantle-1.10.2-0.10.4.jar
mcjtylib-1.10-1.9.9.jar
Morpheus-1.10.2-3.1.7.jar
notenoughwands-1.9.4-1.3.5.jar
OpenComputers-MC1.10.2-1.6.0.3-rc.1.jar
PlayerAPI-1.10.2-1.0.jar
Psi-r1.0-37.jar
Quark-beta-49.jar
rftools-1.10-5.11.jar
rftoolsdim-1.10-4.30beta46.jar
ShadowMC-1.10.2-3.4.4.jar
StorageDrawers-1.9.4-3.2.1.jar
TConstruct-1.10.2-2.4.0.jenkins312.jar
tellme-1.10.2-0.3.0-pre.3.jar
theoneprobe-1.10-1.0.15.jar
TIS-3D-MC1.10-0.9.0.1.jar
TombManyGraves-1.9.4_1.10.2-2.1.8.jar
topaddons-1.10.2-0.4.0.jar
underphangables-1.10.2-1.0.2.jar

server.log

2016-08-13 07:29:06 [ERROR] Failed to save chunk
java.util.ConcurrentModificationException
        at java.util.TreeMap$PrivateEntryIterator.nextEntry(TreeMap.java:1211) ~[?:1.8.0_102]
        at java.util.TreeMap$KeyIterator.next(TreeMap.java:1265) ~[?:1.8.0_102]
        at net.minecraft.world.WorldServer.func_175712_a(WorldServer.java:797) ~[ls.class:?]
        at net.minecraft.world.WorldServer.func_72920_a(WorldServer.java:774) ~[ls.class:?]
        at net.minecraft.world.chunk.storage.AnvilChunkLoader.func_75820_a(AnvilChunkLoader.java:396) ~[atj.class:?]
        at net.minecraft.world.chunk.storage.AnvilChunkLoader.func_75816_a(AnvilChunkLoader.java:175) [atj.class:?]
        at net.minecraft.world.gen.ChunkProviderServer.func_73242_b(ChunkProviderServer.java:199) [lr.class:?]
        at net.minecraft.world.gen.ChunkProviderServer.func_186027_a(ChunkProviderServer.java:227) [lr.class:?]
        at net.minecraft.world.WorldServer.func_73044_a(WorldServer.java:1011) [ls.class:?]
        at btfubackup.WorldSavingControl$$anonfun$saveOffAndFlush$1.apply(WorldSavingControl.scala:11) [WorldSavingControl$$anonfun$saveOffAndFlush$1.class:?]
        at btfubackup.WorldSavingControl$$anonfun$saveOffAndFlush$1.apply(WorldSavingControl.scala:8) [WorldSavingControl$$anonfun$saveOffAndFlush$1.class:?]
        at scala.collection.IndexedSeqOptimized$class.foreach(IndexedSeqOptimized.scala:33) [IndexedSeqOptimized$class.class:?]
        at scala.collection.mutable.ArrayOps$ofRef.foreach(ArrayOps.scala:186) [ArrayOps$ofRef.class:?]
        at btfubackup.WorldSavingControl$.saveOffAndFlush(WorldSavingControl.scala:8) [WorldSavingControl$.class:?]
        at btfubackup.BackupProcess.btfubackup$BackupProcess$$task(BTFUPerformer.scala:84) [BackupProcess.class:?]
        at btfubackup.BackupProcess$$anonfun$1.apply$mcV$sp(BTFUPerformer.scala:60) [BackupProcess$$anonfun$1.class:?]
        at btfubackup.BackupProcess$$anonfun$1.apply(BTFUPerformer.scala:60) [BackupProcess$$anonfun$1.class:?]
        at btfubackup.BackupProcess$$anonfun$1.apply(BTFUPerformer.scala:60) [BackupProcess$$anonfun$1.class:?]
        at scala.concurrent.impl.Future$PromiseCompletingRunnable.liftedTree1$1(Future.scala:24) [Future$PromiseCompletingRunnable.class:?]
        at scala.concurrent.impl.Future$PromiseCompletingRunnable.run(Future.scala:24) [Future$PromiseCompletingRunnable.class:?]
        at scala.concurrent.impl.ExecutionContextImpl$AdaptedForkJoinTask.exec(ExecutionContextImpl.scala:121) [ExecutionContextImpl$AdaptedForkJoinTask.class:?]
        at scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260) [ForkJoinTask.class:?]
        at scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339) [ForkJoinPool$WorkQueue.class:?]
        at scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979) [ForkJoinPool.class:?]
        at scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107) [ForkJoinWorkerThread.class:?]