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

Time: 08.05.2019 15:00
Description: Exception ticking world

java.util.NoSuchElementException
	at it.unimi.dsi.fastutil.longs.LongLinkedOpenHashSet.removeFirstLong(LongLinkedOpenHashSet.java:470)
	at ckn.b(SourceFile:194)
	at aqh$a.a(SourceFile:242)
	at aqh.a(SourceFile:149)
	at us.a(SourceFile:379)
	at ve.a(SourceFile:290)
	at vg.a(SourceFile:310)
	at net.minecraft.server.MinecraftServer.b(SourceFile:827)
	at net.minecraft.server.MinecraftServer.a(SourceFile:764)
	at dxk.a(SourceFile:128)
	at net.minecraft.server.MinecraftServer.run(SourceFile:632)
	at java.lang.Thread.run(Thread.java:745)


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

-- Head --
Thread: Server thread
Stacktrace:
	at it.unimi.dsi.fastutil.longs.LongLinkedOpenHashSet.removeFirstLong(LongLinkedOpenHashSet.java:470)
	at ckn.b(SourceFile:194)
	at aqh$a.a(SourceFile:242)
	at aqh.a(SourceFile:149)
	at us.a(SourceFile:379)
	at ve.a(SourceFile:290)
	at vg.a(SourceFile:310)

-- Affected level --
Details:
	Level name: 1.14 Redstone & Testing World
	All players: 1 total; [vh['YagiXx'/101, l='1.14 Redstone & Testing World', x=12.34, y=56.00, z=-15.70]]
	Chunk stats: ServerChunkCache: 2025
	Level seed: -1641196920375252880
	Level generator: ID 01 - flat, ver 0. Features enabled: true
	Level generator options: {biome:"minecraft:desert",layers:[{block:"minecraft:bedrock",height:1b},{block:"minecraft:stone",height:3b},{block:"minecraft:sandstone",height:52b}],structures:{}}
	Level spawn location: World: (8,55,8), Chunk: (at 8,3,8 in 0,0; contains blocks 0,0,0 to 15,255,15), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
	Level time: 155979 game time, 1000 day time
	Level dimension: 0
	Level storage version: 0x04ABD - Anvil
	Level weather: Rain time: 104273 (now: false), thunder time: 66337 (now: false)
	Level game mode: Game mode: creative (ID 1). Hardcore: false. Cheats: true
Stacktrace:
	at net.minecraft.server.MinecraftServer.b(SourceFile:827)
	at net.minecraft.server.MinecraftServer.a(SourceFile:764)
	at dxk.a(SourceFile:128)
	at net.minecraft.server.MinecraftServer.run(SourceFile:632)
	at java.lang.Thread.run(Thread.java:745)

-- System Details --
Details:
	Minecraft Version: 1.14.1 Pre-Release 1
	Operating System: Windows 10 (amd64) version 10.0
	Java Version: 1.8.0_51, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 1385048000 bytes (1320 MB) / 2147483648 bytes (2048 MB) up to 2147483648 bytes (2048 MB)
	JVM Flags: 9 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xss1M -Xmx2G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M
	Player Count: 1 / 8; [vh['YagiXx'/101, l='1.14 Redstone & Testing World', x=12.34, y=56.00, z=-15.70]]
	Data Packs: vanilla
	Type: Integrated Server (map_client.txt)
	Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.