---- Minecraft Crash Report ----
// Surprise! Haha. Well, this is awkward.

Time: 12/12/18 5:28 PM
Description: Exception ticking world

java.util.ConcurrentModificationException
	at java.util.HashMap$HashIterator.nextNode(Unknown Source)
	at java.util.HashMap$KeyIterator.next(Unknown Source)
	at uo.b(SourceFile:105)
	at asf.j(SourceFile:229)
	at asf.l(SourceFile:326)
	at ash.a(SourceFile:80)
	at uq.a(SourceFile:206)
	at net.minecraft.server.MinecraftServer.b(SourceFile:836)
	at tr.b(SourceFile:337)
	at net.minecraft.server.MinecraftServer.a(SourceFile:773)
	at net.minecraft.server.MinecraftServer.run(SourceFile:639)
	at java.lang.Thread.run(Unknown Source)


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$HashIterator.nextNode(Unknown Source)
	at java.util.HashMap$KeyIterator.next(Unknown Source)
	at uo.b(SourceFile:105)
	at asf.j(SourceFile:229)
	at asf.l(SourceFile:326)
	at ash.a(SourceFile:80)
	at uq.a(SourceFile:206)

-- Affected level --
Details:
	Level name: world
	All players: 2 total; [us['Terrabit'/372, l='world', x=-1423.90, y=66.01, z=-185.51], us['Chipbonk'/392, l='world', x=-1419.40, y=66.01, z=-182.95]]
	Chunk stats: ServerChunkCache: 2203
	Level seed: 3313437644577789598
	Level generator: ID 00 - default, ver 1. Features enabled: true
	Level generator options: {}
	Level spawn location: World: (-1402,70,-210), Chunk: (at 6,4,14 in -88,-14; contains blocks -1408,0,-224 to -1393,255,-209), Region: (-3,-1; contains chunks -96,-32 to -65,-1, blocks -1536,0,-512 to -1025,255,-1)
	Level time: 7042723 game time, 8000 day time
	Level dimension: 0
	Level storage version: 0x04ABD - Anvil
	Level weather: Rain time: 0 (now: false), thunder time: 0 (now: false)
	Level game mode: Game mode: creative (ID 1). Hardcore: false. Cheats: false
Stacktrace:
	at net.minecraft.server.MinecraftServer.b(SourceFile:836)
	at tr.b(SourceFile:337)
	at net.minecraft.server.MinecraftServer.a(SourceFile:773)
	at net.minecraft.server.MinecraftServer.run(SourceFile:639)
	at java.lang.Thread.run(Unknown Source)

-- System Details --
Details:
	Minecraft Version: 18w50a
	Operating System: Windows 10 (amd64) version 10.0
	Java Version: 1.8.0_191, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 470155296 bytes (448 MB) / 4277534720 bytes (4079 MB) up to 17162436608 bytes (16367 MB)
	JVM Flags: 7 total; -Xms4096M -Xmx16384M -XX:+UseConcMarkSweepGC -XX:+UseParNewGC -XX:+CMSIncrementalPacing -XX:ParallelGCThreads=2 -XX:+AggressiveOpts
	Player Count: 2 / 20; [us['Terrabit'/372, l='world', x=-1423.90, y=66.01, z=-185.51], us['Chipbonk'/392, l='world', x=-1419.40, y=66.01, z=-182.95]]
	Data Packs: vanilla
	Is Modded: Unknown (can't tell)
	Type: Dedicated Server (map_server.txt)