---- Minecraft Crash Report ----
// Why is it breaking :(

Time: 5/22/19 6:41 PM
Description: Exception ticking world

java.util.ConcurrentModificationException
	at java.util.HashMap$HashIterator.nextNode(HashMap.java:1437)
	at java.util.HashMap$KeyIterator.next(HashMap.java:1461)
	at vg.a(SourceFile:1031)
	at bhi.a(SourceFile:234)
	at bve.a(SourceFile:210)
	at bvk.a(SourceFile:238)
	at vg.a(SourceFile:1091)
	at vg.ae(SourceFile:1082)
	at vg.a(SourceFile:333)
	at net.minecraft.server.MinecraftServer.b(SourceFile:827)
	at ug.b(SourceFile:343)
	at net.minecraft.server.MinecraftServer.a(SourceFile:764)
	at net.minecraft.server.MinecraftServer.run(SourceFile:632)
	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$HashIterator.nextNode(HashMap.java:1437)
	at java.util.HashMap$KeyIterator.next(HashMap.java:1461)
	at vg.a(SourceFile:1031)
	at bhi.a(SourceFile:234)
	at bve.a(SourceFile:210)
	at bvk.a(SourceFile:238)
	at vg.a(SourceFile:1091)
	at vg.ae(SourceFile:1082)
	at vg.a(SourceFile:333)

-- Affected level --
Details:
	Level name: world
	All players: 1 total; [vh['ScorchedPsyche'/34, l='world', x=-1291.08, y=84.48, z=1008.15]]
	Chunk stats: ServerChunkCache: 4779
	Level seed: -135911761252792
	Level generator: ID 00 - default, ver 1. Features enabled: true
	Level generator options: {}
	Level spawn location: World: (325,83,-682), Chunk: (at 5,5,6 in 20,-43; contains blocks 320,0,-688 to 335,255,-673), Region: (0,-2; contains chunks 0,-64 to 31,-33, blocks 0,0,-1024 to 511,255,-513)
	Level time: 70248972 game time, 2945047 day time
	Level dimension: 0
	Level storage version: 0x04ABD - Anvil
	Level weather: Rain time: 92610 (now: false), thunder time: 4254 (now: true)
	Level game mode: Game mode: survival (ID 0). Hardcore: false. Cheats: false
Stacktrace:
	at net.minecraft.server.MinecraftServer.b(SourceFile:827)
	at ug.b(SourceFile:343)
	at net.minecraft.server.MinecraftServer.a(SourceFile:764)
	at net.minecraft.server.MinecraftServer.run(SourceFile:632)
	at java.lang.Thread.run(Thread.java:748)

-- System Details --
Details:
	Minecraft Version: 1.14.2 Pre-Release 3
	Operating System: Linux (amd64) version 3.10.0-862.14.4.el7.x86_64
	Java Version: 1.8.0_131, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 3493738112 bytes (3331 MB) / 5173149696 bytes (4933 MB) up to 5173149696 bytes (4933 MB)
	JVM Flags: 8 total; -XX:+UnlockExperimentalVMOptions -Xmx4992M -Xms4992M -XX:MetaspaceSize=32m -XX:MaxMetaspaceSize=384m -XX:CompressedClassSpaceSize=64m -XX:+UseCompressedOops -XX:+UseCompressedClassPointers
	Player Count: 1 / 20; [vh['ScorchedPsyche'/34, l='world', x=-1291.08, y=84.48, z=1008.15]]
	Data Packs: vanilla, file/afk display v1.0.1.zip (incompatible), file/OnePlayerSleepV3.zip (incompatible), file/double shulker shells v1.0.1.zip (incompatible), file/dragon drops elytra v1.0.1.zip (incompatible), file/more mob heads loot tables only v2.0.0.zip (incompatible), file/Vanilla_Recipes_Extended_1.0.0-alpha.zip (incompatible), file/nether portal coords v1.0.0.zip (incompatible), file/anti creeper grief v1.0.0.zip (incompatible), file/anti enderman grief v1.0.0.zip (incompatible), file/anti ghast grief v1.0.0.zip (incompatible), file/connected_villager_job_site_1.0.0-beta.zip (incompatible), file/light_sources_fix_1.1.0-beta.zip (incompatible)
	Is Modded: Unknown (can't tell)
	Type: Dedicated Server (map_server.txt)