---- Minecraft Crash Report ----
// Sorry :(

Time: 15/06/18 23:11
Description: Exception ticking world

java.lang.NullPointerException: Exception ticking world
	at sn.n_(SourceFile:422)
	at sn.i_(SourceFile:220)
	at net.minecraft.server.MinecraftServer.w(SourceFile:693)
	at net.minecraft.server.MinecraftServer.v(SourceFile:626)
	at dir.v(SourceFile:156)
	at net.minecraft.server.MinecraftServer.run(SourceFile:531)
	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 sn.n_(SourceFile:422)
	at sn.i_(SourceFile:220)

-- Affected level --
Details:
	Level name: Rush
	All players: 1 total; [sp['Dragorn421'/17, l='Rush', x=-232.71, y=50.00, z=-7.53]]
	Chunk stats: ServerChunkCache: 662 Drop: 0
	Level seed: 5456680652050067456
	Level generator: ID 01 - flat, ver 0. Features enabled: false
	Level generator options: {"flat_world_options":"minecraft:air"}
	Level spawn location: World: (-272,19,-12), Chunk: (at 0,1,4 in -17,-1; contains blocks -272,0,-16 to -257,255,-1), Region: (-1,-1; contains chunks -32,-32 to -1,-1, blocks -512,0,-512 to -1,255,-1)
	Level time: 177366 game time, 99 day time
	Level dimension: 0
	Level storage version: 0x04ABD - Anvil
	Level weather: Rain time: 19904732 (now: false), thunder time: 19904732 (now: false)
	Level game mode: Game mode: survival (ID 0). Hardcore: false. Cheats: true
Stacktrace:
	at net.minecraft.server.MinecraftServer.w(SourceFile:693)
	at net.minecraft.server.MinecraftServer.v(SourceFile:626)
	at dir.v(SourceFile:156)
	at net.minecraft.server.MinecraftServer.run(SourceFile:531)
	at java.lang.Thread.run(Thread.java:745)

-- System Details --
Details:
	Minecraft Version: 1.13-pre2
	Operating System: Windows 10 (amd64) version 10.0
	Java Version: 1.8.0_25, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 667066008 bytes (636 MB) / 1060372480 bytes (1011 MB) up to 4281597952 bytes (4083 MB)
	JVM Flags: 8 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xss1M -Xmx4G -Xms1G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M
	Profiler Position: N/A (disabled)
	Player Count: 1 / 8; [sp['Dragorn421'/17, l='Rush', x=-232.71, y=50.00, z=-7.53]]
	Data Packs: vanilla
	Type: Integrated Server (map_client.txt)
	Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.