---- Minecraft Crash Report ----
// This is a token for 1 free hug. Redeem at your nearest Mojangsta: [~~HUG~~]

Time: 12/7/19 6:47 PM
Description: Exception ticking world

java.util.ConcurrentModificationException
	at java.util.HashMap$HashIterator.nextNode(HashMap.java:1445)
	at java.util.HashMap$KeyIterator.next(HashMap.java:1469)
	at vk.a(SourceFile:1037)
	at bhr.a(SourceFile:233)
	at bvn.a(SourceFile:199)
	at bvt.a(SourceFile:241)
	at vk.a(SourceFile:1097)
	at vk.ae(SourceFile:1088)
	at vk.a(SourceFile:336)
	at net.minecraft.server.MinecraftServer.b(SourceFile:835)
	at uk.b(SourceFile:343)
	at net.minecraft.server.MinecraftServer.a(SourceFile:774)
	at net.minecraft.server.MinecraftServer.run(SourceFile:642)
	at java.lang.Thread.run(Thread.java:748)


A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- Head --
Thread: Server thread
Stacktrace:
	at java.util.HashMap$HashIterator.nextNode(HashMap.java:1445)
	at java.util.HashMap$KeyIterator.next(HashMap.java:1469)
	at vk.a(SourceFile:1037)
	at bhr.a(SourceFile:233)
	at bvn.a(SourceFile:199)
	at bvt.a(SourceFile:241)
	at vk.a(SourceFile:1097)
	at vk.ae(SourceFile:1088)
	at vk.a(SourceFile:336)

-- Affected level --
Details:
	All players: 9 total; [vl['Lady_Toby'/389254, l='world', x=521.51, y=58.00, z=-2901.02], vl['iLuxLucis'/506015, l='world', x=2929.86, y=79.06, z=-705.86], vl['Celticgoddes13'/589119, l='world', x=7116.70, y=5.00, z=1928.30], vl['Sir_Toby_7'/395353, l='world', x=604.70, y=74.00, z=-2826.70], vl['DecayingLife'/608411, l='world', x=-2313.08, y=60.00, z=-3819.40], vl['Major_Phule'/614109, l='world', x=5440.19, y=55.00, z=603.30], vl['Femble'/600677, l='world', x=9926.58, y=11.00, z=-424.14], vl['BigMilky101'/642125, l='world', x=-2319.01, y=57.00, z=-3814.87], vl['kieransearl'/573291, l='world', x=6832.27, y=64.12, z=799.15]]
	Chunk stats: ServerChunkCache: 15720
	Level dimension: minecraft:overworld
	Level name: world
	Level seed: 8210109244613034996
	Level generator: ID 00 - default, ver 1. Features enabled: true
	Level generator options: {}
	Level spawn location: World: (4163,72,35), Chunk: (at 3,4,3 in 260,2; contains blocks 4160,0,32 to 4175,255,47), Region: (8,0; contains chunks 256,0 to 287,31, blocks 4096,0,0 to 4607,255,511)
	Level time: 1159959242 game time, 443525442 day time
	Level storage version: 0x04ABD - Anvil
	Level weather: Rain time: 50962 (now: false), thunder time: 40327 (now: false)
	Level game mode: Game mode: survival (ID 0). Hardcore: false. Cheats: false
Stacktrace:
	at net.minecraft.server.MinecraftServer.b(SourceFile:835)
	at uk.b(SourceFile:343)
	at net.minecraft.server.MinecraftServer.a(SourceFile:774)
	at net.minecraft.server.MinecraftServer.run(SourceFile:642)
	at java.lang.Thread.run(Thread.java:748)

-- System Details --
Details:
	Minecraft Version: 1.14.4
	Minecraft Version ID: 1.14.4
	Operating System: Linux (amd64) version 3.10.0-957.27.2.el7.x86_64
	Java Version: 1.8.0_232, Oracle Corporation
	Java VM Version: OpenJDK 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 626300472 bytes (597 MB) / 2701406208 bytes (2576 MB) up to 16707485696 bytes (15933 MB)
	CPUs: 8
	JVM Flags: 5 total; -Xms128M -Xmx16000M -XX:+UseConcMarkSweepGC -XX:+DisableExplicitGC -XX:+CMSClassUnloadingEnabled
	Player Count: 9 / 99; [vl['Lady_Toby'/389254, l='world', x=521.51, y=58.00, z=-2901.02], vl['Sir_Toby_7'/395353, l='world', x=604.70, y=74.00, z=-2826.70], vl['iLuxLucis'/506015, l='world', x=2929.86, y=79.06, z=-705.86], vl['Celticgoddes13'/589119, l='world', x=7116.70, y=5.00, z=1928.30], vl['Femble'/600677, l='world', x=9926.58, y=11.00, z=-424.14], vl['DecayingLife'/608411, l='world', x=-2313.08, y=60.00, z=-3819.40], vl['Major_Phule'/614109, l='world', x=5440.19, y=55.00, z=603.30], vl['BigMilky101'/642125, l='world', x=-2319.01, y=57.00, z=-3814.87], vl['kieransearl'/573291, l='world', x=6832.27, y=64.12, z=799.15]]
	Data Packs: vanilla, file/anti enderman grief v1.0.0.zip, file/silence mobs v1.0.0.zip, file/customizable armor stands v2.4.0.zip, file/VanillaTweaks_c677591.zip (incompatible), file/anti ghast grief v1.0.0.zip, file/coordinates hud v1.1.1.zip, file/dragon drops elytra v1.0.2.zip, file/kill empty boats v1.0.0.zip, file/larger phantoms v1.0.0.zip, file/more mob heads v2.1.0.zip, file/multiplayer sleep v1.0.1.zip, file/pillager tools v1.0.1.zip, file/player_head_drops_v1.0.0.zip, file/terracotta rotation wrench v1.0.1.zip
	Is Modded: Unknown (can't tell)
	Type: Dedicated Server (map_server.txt)