---- Minecraft Crash Report ---- // This is a token for 1 free hug. Redeem at your nearest Mojangsta: [~~HUG~~] Time: 3/4/20 5:38 PM Description: Exception in server tick loop java.lang.NullPointerException: Exception in server tick loop at com.google.common.base.Preconditions.checkNotNull(Preconditions.java:770) at com.google.common.collect.SingletonImmutableSet.(SingletonImmutableSet.java:47) at com.google.common.collect.ImmutableSet.of(ImmutableSet.java:82) at boz.(SourceFile:16) at bob.a(SourceFile:28) at cfj.k(SourceFile:76) at yg.a(SourceFile:175) at bmy.(SourceFile:124) at yg.(SourceFile:175) at net.minecraft.server.MinecraftServer.a(SourceFile:403) at ejo.a(SourceFile:84) at ejo.d(SourceFile:106) at net.minecraft.server.MinecraftServer.run(SourceFile:634) at java.lang.Thread.run(Thread.java:745) A detailed walkthrough of the error, its code path and all known details is as follows: --------------------------------------------------------------------------------------- -- System Details -- Details: Minecraft Version: 20w10a Minecraft Version ID: 20w10a Operating System: Mac OS X (x86_64) version 10.11.6 Java Version: 1.8.0_74, Oracle Corporation Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation Memory: 1564448816 bytes (1491 MB) / 2147483648 bytes (2048 MB) up to 2147483648 bytes (2048 MB) CPUs: 4 JVM Flags: 8 total; -Xss1M -Xmx2G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M 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.