---- Minecraft Crash Report ----
// You should try our sister game, Minceraft!

Time: 3/17/18 9:40 PM
Description: Exception in server tick loop

java.lang.NullPointerException: Exception in server tick loop
	at auy.a(SourceFile:431)
	at bji.e(SourceFile:60)
	at bji.<init>(SourceFile:46)
	at biy.o(SourceFile:46)
	at se.o(SourceFile:719)
	at se.<init>(SourceFile:127)
	at czd.a(SourceFile:96)
	at czd.d(SourceFile:131)
	at net.minecraft.server.MinecraftServer.run(SourceFile:502)
	at java.lang.Thread.run(Thread.java:745)


A detailed walkthrough of the error, its code path and all known details is as follows:
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-- System Details --
Details:
	Minecraft Version: 18w11a
	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: 168937160 bytes (161 MB) / 536870912 bytes (512 MB) up to 1073741824 bytes (1024 MB)
	JVM Flags: 8 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=16M
	Profiler Position: N/A (disabled)
	Player Count: 0 / 8; []
	Data Packs: vanilla
	Type: Integrated Server (map_client.txt)
	Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.