---- Minecraft Crash Report ----
// There are four lights!

Time: 6/27/19 8:56 AM
Description: Exception ticking world

java.util.ConcurrentModificationException
	at java.util.HashMap$HashIterator.nextNode(Unknown Source)
	at java.util.HashMap$KeyIterator.next(Unknown Source)
	at java.util.Collections$UnmodifiableCollection$1.next(Unknown Source)
	at axf.y(SourceFile:259)
	at axf.o(SourceFile:389)
	at axh.a(SourceFile:72)
	at vi.a(SourceFile:325)
	at net.minecraft.server.MinecraftServer.b(SourceFile:824)
	at ui.b(SourceFile:343)
	at net.minecraft.server.MinecraftServer.a(SourceFile:763)
	at net.minecraft.server.MinecraftServer.run(SourceFile:631)
	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 java.util.Collections$UnmodifiableCollection$1.next(Unknown Source)
	at axf.y(SourceFile:259)
	at axf.o(SourceFile:389)
	at axh.a(SourceFile:72)
	at vi.a(SourceFile:325)

-- Affected level --
Details:
	All players: 2 total; [vj['ItzMuffinTime'/134, l='world', x=-128.70, y=63.56, z=880.51], vj['Coral_Papa'/294, l='world', x=0.50, y=83.41, z=0.50]]
	Chunk stats: ServerChunkCache: 4284
	Level dimension: minecraft:overworld
	Level name: world
	Level seed: -3114811083343595679
	Level generator: ID 00 - default, ver 1. Features enabled: true
	Level generator options: {}
	Level spawn location: World: (-96,63,208), Chunk: (at 0,3,0 in -6,13; contains blocks -96,0,208 to -81,255,223), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511)
	Level time: 74135308 game time, 480000 day time
	Level storage version: 0x04ABD - Anvil
	Level weather: Rain time: 118955 (now: false), thunder time: 37090 (now: false)
	Level game mode: Game mode: survival (ID 0). Hardcore: false. Cheats: false
Stacktrace:
	at net.minecraft.server.MinecraftServer.b(SourceFile:824)
	at ui.b(SourceFile:343)
	at net.minecraft.server.MinecraftServer.a(SourceFile:763)
	at net.minecraft.server.MinecraftServer.run(SourceFile:631)
	at java.lang.Thread.run(Unknown Source)

-- System Details --
Details:
	Minecraft Version: 1.14.3
	Operating System: Windows 10 (amd64) version 10.0
	Java Version: 1.8.0_211, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 1077264248 bytes (1027 MB) / 1428684800 bytes (1362 MB) up to 1908932608 bytes (1820 MB)
	JVM Flags: 2 total; -Xms1024M -Xmx2048M
	Player Count: 2 / 20; [vj['ItzMuffinTime'/134, l='world', x=-128.70, y=63.56, z=880.51], vj['Coral_Papa'/294, l='world', x=0.50, y=83.41, z=0.50]]
	Data Packs: vanilla, file/bukkit (incompatible)
	Is Modded: Unknown (can't tell)
	Type: Dedicated Server (map_server.txt)