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My Server crashs after about 10 minutes. This is the Crash Report ---- Minecraft Crash Report ---- // Shall we play a game? Time: 12.01.16 17:24 Description: Exception in server tick loop java.util.ConcurrentModificationException at java.util.HashMap$HashIterator.nextNode(Unknown Source) at java.util.HashMap$KeyIterator.next(Unknown Source) at net.minecraft.entity.EntityTracker.func_72788_a(EntityTracker.java:269) at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:648) at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:334) at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:547) 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: --------------------------------------------------------------------------------------- -- System Details -- Details: Minecraft Version: 1.7.10 Operating System: Windows Server 2008 R2 (amd64) version 6.1 Java Version: 1.8.0_66, Oracle Corporation Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation Memory: 2352430560 bytes (2243 MB) / 4151967744 bytes (3959 MB) up to 6227755008 bytes (5939 MB) JVM Flags: 9 total; -Xms4G -Xmx6G -XX:PermSize=256m -XX:+UseParNewGC -XX:+CMSIncrementalPacing -XX:+CMSClassUnloadingEnabled -XX:ParallelGCThreads=2 -XX:MinHeapFreeRatio=5 -XX:MaxHeapFreeRatio=10 AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used IntCache: cache: 3, tcache: 0, allocated: 12, tallocated: 96 FML: MCP v9.05 FML v7.10.99.99 Minecraft Forge 10.13.4.1558 121 mods loaded, 121 mods active States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored UCHIJAAAA mcp{9.05} [Minecraft Coder Pack] (minecraft.jar) UCHIJAAAA FML{7.10.99.99} [Forge Mod Loader] (forge-1.7.10-10.13.4.1558-1.7.10-universal.jar) UCHIJAAAA Forge{10.13.4.1558} [Minecraft Forge] (forge-1.7.10-10.13.4.1558-1.7.10-universal.jar) UCHIJAAAA appliedenergistics2-core{rv2-stable-10} [AppliedEnergistics2 Core] (minecraft.jar) UCHIJAAAA Aroma1997Core{1.0.2.16} [Aroma1997Core] (Aroma1997Core-1.7.10-1.0.2.16.jar) UCHIJAAAA CodeChickenCore{1.0.7.47} [CodeChicken Core] (minecraft.jar) UCHIJAAAA Micdoodlecore{} [Micdoodle8 Core] (minecraft.jar) UCHIJAAAA NotEnoughItems{1.0.5.118} [Not Enough Items] (NotEnoughItems-1.7.10-1.0.5.118-universal.jar) UCHIJAAAA OpenModsCore{0.9} [OpenModsCore] (minecraft.jar) UCHIJAAAA <CoFH ASM>{000} [CoFH ASM] (minecraft.jar) UCHIJAAAA CoFHCore{1.7.10R3.0.3} [CoFH Core] (CoFHCore-[1.7.10]3.0.3-303.jar) UCHIJAAAA BuildCraft|Core{7.1.14} [buildCraft] (buildcraft-7.1.14 (1).jar) UCHIJAAAA BuildCraft|Energy{7.1.14} [bC Energy] (buildcraft-7.1.14 (1).jar) UCHIJAAAA IC2{2.2.810-experimental} [industrialCraft 2] (industrialcraft-2-2.2.810-experimental.jar) UCHIJAAAA GalacticraftCore{3.0.12} [Galacticraft Core] (GalacticraftCore-1.7-3.0.12.407.jar) UCHIJAAAA SpaceCore{4.1.9} [4Space Core] (4Space-4.1.9.jar) UCHIJAAAA ExoCore{0.1.2} [4Space Exoplanets Core] (4Space-4.1.9.jar) UCHIJAAAA ExoElipse{0.1.2} [4Space Exoplanets Elipse] (4Space-4.1.9.jar) UCHIJAAAA SpaceCallisto{4.1.9} [4Space Callisto] (4Space-4.1.9.jar) UCHIJAAAA SpaceEuropa{4.1.9} [4Space Europa] (4Space-4.1.9.jar) UCHIJAAAA SpaceVenus{4.1.9} [4Space Venus] (4Space-4.1.9.jar) UCHIJAAAA SpaceIo{4.1.9} [4Space Io] (4Space-4.1.9.jar) UCHIJAAAA SpaceMercury{4.1.9} [4Space Mercury] (4Space-4.1.9.jar) UCHIJAAAA SpacePluto{4.1.9} [4Space Pluto] (4Space-4.1.9.jar) UCHIJAAAA Narcotics+{1.7.1} [Narcotics+] ([1.7.10] NarcoticsPlus.zip) UCHIJAAAA bspkrsCore{6.16} [bspkrsCore] ([1.7.10]bspkrsCore-universal-6.16.jar) UCHIJAAAA Treecapitator{1.7.10} [Treecapitator] ([1.7.10]Treecapitator-universal-2.0.4.jar) UCHIJAAAA appliedenergistics2{rv2-stable-10} [Applied Energistics 2] (appliedenergistics2-rv2-stable-10.jar) UCHIJAAAA Aroma1997CoreHelper{1.0.2.16} [Aroma1997Core|Helper] (Aroma1997Core-1.7.10-1.0.2.16.jar) UCHIJAAAA Aroma1997sDimension{1.0} [Aroma1997's Dimensional World] (Aroma1997s-Dimensional-World-1.7.10-1.1.0.1.jar) UCHIJAAAA BiblioCraft{1.11.3} [biblioCraft] (BiblioCraft[v1.11.3][MC1.7.10].jar) UCHIJAAAA ThermalFoundation{1.7.10R1.2.0} [Thermal Foundation] (ThermalFoundation-[1.7.10]1.2.0-102.jar) UCHIJAAAA ThermalExpansion{1.7.10R4.0.3B1} [Thermal Expansion] (ThermalExpansion-[1.7.10]4.0.3B1-218.jar) UCHIJAAAA BigReactors{0.4.3A} [big Reactors] (BigReactors-0.4.3A.jar) UCHIJAAAA BuildCraft|Builders{7.1.14} [bC Builders] (buildcraft-7.1.14 (1).jar) UCHIJAAAA BuildCraft|Transport{7.1.14} [bC Transport] (buildcraft-7.1.14 (1).jar) UCHIJAAAA BuildCraft|Silicon{7.1.14} [bC Silicon] (buildcraft-7.1.14 (1).jar) UCHIJAAAA BuildCraft|Robotics{7.1.14} [bC Robotics] (buildcraft-7.1.14 (1).jar) UCHIJAAAA BuildCraft|Factory{7.1.14} [bC Factory] (buildcraft-7.1.14 (1).jar) UCHIJAAAA ForgeMultipart{1.2.0.345} [Forge Multipart] (ForgeMultipart-1.7.10-1.2.0.345-universal.jar) UCHIJAAAA chisel{2.5.1.44} [Chisel 2] (Chisel2-2.5.1.44.jar) UCHIJAAAA CompactSolars{4.4.39.315} [Compact Solar Arrays] (CompactSolars-1.7.10-4.4.39.315-universal.jar) UCHIJAAAA ComputerCraft{1.75} [ComputerCraft] (ComputerCraft1.75.jar) UCHIJAAAA creativecore{1.3.14} [CreativeCore] (CreativeCore v1.3.21 mc1.7.10.jar) UCHIJAAAA PTRModelLib{1.0.0} [PTRModelLib] (Decocraft-2.2.1_1.7.10.jar) UCHIJAAAA props{2.2.1} [Decocraft] (Decocraft-2.2.1_1.7.10.jar) UCHIJAAAA MineFactoryReloaded{1.7.10R2.8.0} [MineFactory Reloaded] (MineFactoryReloaded-[1.7.10]2.8.0-104.jar) UCHIJAAAA EnderIO{1.7.10-2.2.8.381} [Ender IO] (EnderIO-1.7.10-2.2.8.381.jar) UCHIJAAAA EnderStorage{1.4.7.37} [EnderStorage] (EnderStorage-1.7.10-1.4.7.37-universal.jar) UCHIJAAAA ExtraUtilities{1.2.12} [Extra Utilities] (extrautilities-1.2.12.jar) UCHIJAAAA FastCraft{1.21} [FastCraft] (fastcraft-1.21.jar) UCHIJAAAA Waila{1.5.10} [Waila] (Waila-1.5.10_1.7.10.jar) UCHIJAAAA FTBL{1.0.13.1} [FTBLib] (FTBLib-1.7.10-1.0.13.3.jar) UCHIJAAAA FTBU{1.0.13.1} [FTBUtilities] (FTBUtilities-1.7.10-1.0.13.3.jar) UCHIJAAAA GalacticraftMars{3.0.12} [Galacticraft Planets] (Galacticraft-Planets-1.7-3.0.12.407.jar) UCHIJAAAA IC2NuclearControl{2.3.3a-Exist} [Nuclear Control 2] (IC2NuclearControl-2.3.3a-Exist.jar) UCHIJAAAA ingameconfigmanager{0.1} [inGameConfigManager] (InGameConfigManager Alpha v0.1.10 mc1.7.10.zip) UCHIJAAAA inpure|core{1.7.10R1.0.0B9} [iNpureCore] (INpureCore-[1.7.10]1.0.0B9-62.jar) UCHIJAAAA inventorytweaks{1.59-dev-152-cf6e263} [inventory Tweaks] (InventoryTweaks-1.59-dev-152.jar) UCHIJAAAA IronChest{6.0.62.742} [iron Chest] (ironchest-1.7.10-6.0.62.742-universal.jar) UCHIJAAAA journeymap{5.1.3} [JourneyMap] (journeymap-1.7.10-5.1.3-unlimited.jar) UCHIJAAAA Mantle{1.7.10-0.3.2.jenkins191} [Mantle] (Mantle-1.7.10-0.3.2b.jar) UCHIJAAAA minechem{5.0.5.406} [Minechem] (Minechem-1.7.10-5.0.5.406.jar) UCHIJAAAA MineFactoryReloaded|CompatAppliedEnergistics{1.7.10R2.8.0} [MFR Compat: Applied Energistics] (MineFactoryReloaded-[1.7.10]2.8.0-104.jar) UCHIJAAAA MineFactoryReloaded|CompatAtum{1.7.10R2.8.0} [MFR Compat: Atum] (MineFactoryReloaded-[1.7.10]2.8.0-104.jar) UCHIJAAAA MineFactoryReloaded|CompatBackTools{1.7.10R2.8.0} [MFR Compat: BackTools] (MineFactoryReloaded-[1.7.10]2.8.0-104.jar) UCHIJAAAA MineFactoryReloaded|CompatBuildCraft{1.7.10R2.8.0} [MFR Compat: BuildCraft] (MineFactoryReloaded-[1.7.10]2.8.0-104.jar) UCHIJAAAA MineFactoryReloaded|CompatChococraft{1.7.10R2.8.0} [MFR Compat: Chococraft] (MineFactoryReloaded-[1.7.10]2.8.0-104.jar) UCHIJAAAA MineFactoryReloaded|CompatExtraBiomes{1.7.10R2.8.0} [MFR Compat: ExtraBiomes] (MineFactoryReloaded-[1.7.10]2.8.0-104.jar) UCHIJAAAA MineFactoryReloaded|CompatForestry{1.7.10R2.8.0} [MFR Compat: Forestry] (MineFactoryReloaded-[1.7.10]2.8.0-104.jar) UCHIJAAAA MineFactoryReloaded|CompatForgeMicroblock{1.7.10R2.8.0} [MFR Compat: ForgeMicroblock] (MineFactoryReloaded-[1.7.10]2.8.0-104.jar) UCHIJAAAA MineFactoryReloaded|CompatIC2{1.7.10R2.8.0} [MFR Compat: IC2] (MineFactoryReloaded-[1.7.10]2.8.0-104.jar) UCHIJAAAA MineFactoryReloaded|CompatMystcraft{1.7.10R2.8.0} [MFR Compat: Mystcraft] (MineFactoryReloaded-[1.7.10]2.8.0-104.jar) UCHIJAAAA MrTJPCoreMod{1.1.0.31} [MrTJPCore] (MrTJPCore-1.1.0.31-universal.jar) UCHIJAAAA ProjRed|Core{4.7.0pre9.92} [ProjectRed Core] (ProjectRed-1.7.10-4.7.0pre9.92-Base.jar) UCHIJAAAA MineFactoryReloaded|CompatProjRed{1.7.10R2.8.0} [MFR Compat ProjectRed] (MineFactoryReloaded-[1.7.10]2.8.0-104.jar) UCHIJAAAA MineFactoryReloaded|CompatRailcraft{1.7.10R2.8.0} [MFR Compat: Railcraft] (MineFactoryReloaded-[1.7.10]2.8.0-104.jar) UCHIJAAAA MineFactoryReloaded|CompatSufficientBiomes{1.7.10R2.8.0} [MFR Compat: Sufficient Biomes] (MineFactoryReloaded-[1.7.10]2.8.0-104.jar) UCHIJAAAA MineFactoryReloaded|CompatThaumcraft{1.7.10R2.8.0} [MFR Compat: Thaumcraft] (MineFactoryReloaded-[1.7.10]2.8.0-104.jar) UCHIJAAAA MineFactoryReloaded|CompatThermalExpansion{1.7.10R2.8.0} [MFR Compat: Thermal Expansion] (MineFactoryReloaded-[1.7.10]2.8.0-104.jar) UCHIJAAAA TConstruct{1.7.10-1.8.8.build988} [Tinkers' Construct] (TConstruct-1.7.10-1.8.8.jar) UCHIJAAAA MineFactoryReloaded|CompatTConstruct{1.7.10R2.8.0} [MFR Compat: Tinkers' Construct] (MineFactoryReloaded-[1.7.10]2.8.0-104.jar) UCHIJAAAA MineFactoryReloaded|CompatTwilightForest{1.7.10R2.8.0} [MFR Compat: TwilightForest] (MineFactoryReloaded-[1.7.10]2.8.0-104.jar) UCHIJAAAA MineFactoryReloaded|CompatVanilla{1.7.10R2.8.0} [MFR Compat: Vanilla] (MineFactoryReloaded-[1.7.10]2.8.0-104.jar) UCHIJAAAA numina{0.4.0.119} [Numina] (Numina-0.4.0.119.jar) UCHIJAAAA powersuits{0.11.0.296} [MachineMuse's Modular Powersuits] (ModularPowersuits-0.11.0.296.jar) UCHIJAAAA Morpheus{1.7.10-1.6.20} [Morpheus] (Morpheus-1.7.10-1.6.20.jar) UCHIJAAAA cfm{3.4.8} [§9MrCrayfish's Furniture Mod] (MrCrayfishFurnitureModv3.4.8(1.7.10).jar) UCHIJAAAA NEIAddons{1.12.14.40} [NEI Addons] (neiaddons-1.12.14.40-mc1.7.10.jar) UCHIJAAAA NEIAddons|Developer{1.12.14.40} [NEI Addons: Developer Tools] (neiaddons-1.12.14.40-mc1.7.10.jar) UCHIJAAAA NEIAddons|AppEng{1.12.14.40} [NEI Addons: Applied Energistics 2] (neiaddons-1.12.14.40-mc1.7.10.jar) UCHIJAAAA NEIAddons|Botany{1.12.14.40} [NEI Addons: Botany] (neiaddons-1.12.14.40-mc1.7.10.jar) UCHIJAAAA NEIAddons|Forestry{1.12.14.40} [NEI Addons: Forestry] (neiaddons-1.12.14.40-mc1.7.10.jar) UCHIJAAAA NEIAddons|CraftingTables{1.12.14.40} [NEI Addons: Crafting Tables] (neiaddons-1.12.14.40-mc1.7.10.jar) UCHIJAAAA NEIAddons|ExNihilo{1.12.14.40} [NEI Addons: Ex Nihilo] (neiaddons-1.12.14.40-mc1.7.10.jar) UCHIJAAAA neiintegration{1.1.1} [NEI Integration] (NEIIntegration-MC1.7.10-1.1.1.jar) UCHIJAAAA OpenMods{0.9} [OpenMods] (OpenModsLib-1.7.10-0.9.jar) UCHIJAAAA OpenBlocks{1.5} [OpenBlocks] (OpenBlocks-1.7.10-1.5.jar) UCHIJAAAA PneumaticCraft{1.12.3-146} [PneumaticCraft] (PneumaticCraft-1.7.10-1.12.3-146-universal.jar) UCHIJAAAA ProjRed|Transmission{4.7.0pre9.92} [ProjectRed Transmission] (ProjectRed-1.7.10-4.7.0pre9.92-Integration.jar) UCHIJAAAA ProjRed|Transportation{4.7.0pre9.92} [ProjectRed Transportation] (ProjectRed-1.7.10-4.7.0pre9.92-Mechanical.jar) UCHIJAAAA ProjRed|Compatibility{4.7.0pre9.92} [ProjectRed Compatibility] (ProjectRed-1.7.10-4.7.0pre9.92-Compat.jar) UCHIJAAAA ProjRed|Integration{4.7.0pre9.92} [ProjectRed Integration] (ProjectRed-1.7.10-4.7.0pre9.92-Integration.jar) UCHIJAAAA ProjRed|Fabrication{4.7.0pre9.92} [ProjectRed Fabrication] (ProjectRed-1.7.10-4.7.0pre9.92-Fabrication.jar) UCHIJAAAA ProjRed|Illumination{4.7.0pre9.92} [ProjectRed Illumination] (ProjectRed-1.7.10-4.7.0pre9.92-Lighting.jar) UCHIJAAAA ProjRed|Expansion{4.7.0pre9.92} [ProjectRed Expansion] (ProjectRed-1.7.10-4.7.0pre9.92-Mechanical.jar) UCHIJAAAA Roguelike{1.4.4} [Roguelike Dungeons] (roguelike-1.7.10-1.4.4.jar) UCHIJAAAA SGCraft{1.9.3} [Greg's SG Craft] (SGCraft-1.9.3-mc1.7.10.jar) UCHIJAAAA simplyjetpacks{1.5.3} [simply Jetpacks] (SimplyJetpacks-MC1.7.10-1.5.3.jar) UCHIJAAAA SolarFlux{1.7.10-0.8b} [solar Flux] (SolarFlux-1.7.10-0.8b.jar) UCHIJAAAA ThermalDynamics{1.7.10R1.1.0} [Thermal Dynamics] (ThermalDynamics-[1.7.10]1.1.0-161.jar) UCHIJAAAA TMechworks{0.2.15.106} [Tinkers' Mechworks] (TMechworks-1.7.10-0.2.15.106.jar) UCHIJAAAA worldedit{6.0-beta-01} [WorldEdit] (worldedit-forge-mc1.7.10-6.0-beta-01.jar) UCHIJAAAA WR-CBE|Core{1.4.1.9} [WR-CBE Core] (WR-CBE-1.7.10-1.4.1.9-universal.jar) UCHIJAAAA WR-CBE|Addons{1.4.1.9} [WR-CBE Addons] (WR-CBE-1.7.10-1.4.1.9-universal.jar) UCHIJAAAA WR-CBE|Logic{1.4.1.9} [WR-CBE Logic] (WR-CBE-1.7.10-1.4.1.9-universal.jar) UCHIJAAAA McMultipart{1.2.0.345} [Minecraft Multipart Plugin] (ForgeMultipart-1.7.10-1.2.0.345-universal.jar) UCHIJAAAA ForgeRelocation{0.0.1.4} [ForgeRelocation] (ForgeRelocation-1.7.10-0.0.1.4-universal.jar) UCHIJAAAA MCFrames{1.0} [MCFrames] (ForgeRelocation-1.7.10-0.0.1.4-universal.jar) UCHIJAAAA RelocationFMP{0.0.1.2} [RelocationFMP] (ForgeRelocationFMP-1.7.10-0.0.1.2-universal.jar) UCHIJAAAA ForgeMicroblock{1.2.0.345} [Forge Microblocks] (ForgeMultipart-1.7.10-1.2.0.345-universal.jar) OpenModsLib class transformers: [stencil_patches:ENABLED],[movement_callback:ENABLED],[map_gen_fix:FINISHED],[gl_capabilities_hook:ENABLED],[player_render_hook:ENABLED] Class transformer null safety: all safe CoFHCore: -[1.7.10]3.0.3-303 AE2 Version: stable rv2-stable-10 for Forge 10.13.2.1291 ThermalFoundation: -[1.7.10]1.2.0-102 ThermalExpansion: -[1.7.10]4.0.3B1-218 MineFactoryReloaded: -[1.7.10]2.8.0-104 Mantle Environment: Environment healthy. TConstruct Environment: Environment healthy. ThermalDynamics: -[1.7.10]1.1.0-161 AE2 Integration: IC2:ON, RotaryCraft:OFF, RC:OFF, BC:ON, RF:ON, RFItem:ON, MFR:ON, DSU:ON, FZ:OFF, FMP:ON, RB:OFF, CLApi:OFF, Waila:ON, Mekanism:OFF, ImmibisMicroblocks:OFF, BetterStorage:OFF Profiler Position: N/A (disabled) Vec3 Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used Player Count: 5 / 15; [GCEntityPlayerMP['REMOVED'/2763, l='world', x=2872,37, y=96,00, z=-220,92], GCEntityPlayerMP['REMOVED'/4224, l='world', x=-365,89, y=1,58, z=-2944,68], GCEntityPlayerMP['REMOVED'/7303, l='world', x=-951,17, y=64,00, z=211,35], GCEntityPlayerMP['REMOVED'/20869, l='world', x=-455,25, y=80,00, z=298,19], GCEntityPlayerMP['REMOVED'/64343, l='world', x=-328,56, y=75,00, z=746,24]] Is Modded: Definitely; Server brand changed to 'fml,forge' Type: Dedicated Server (map_server.txt) start parameter: java -server -Xms4G -Xmx6G -XX:PermSize=256m -d64 -XX:+UseParNewGC -XX:+CMSIncrementalPacing -XX:+CMSClassUnloadingEnabled -XX:ParallelGCThreads=2 -XX:MinHeapFreeRatio=5 -XX:MaxHeapFreeRatio=10 -jar forge-1.7.10-10.13.4.1558-1.7.10-universal.jar nogui

Thanks i will Test it later

Afer a time i rum my server this crash comes: http://pastebin.com/pqvG7qSh Can someone help?