---- Minecraft Crash Report ---- // On the bright side, I bought you a teddy bear! Time: 2/14/19 6:06 PM Description: Exception in server tick loop java.util.concurrent.CompletionException: j: Loading NBT data at java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:273) at java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:280) at java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1592) at ut.d(SourceFile:240) at net.minecraft.server.MinecraftServer.p(SourceFile:706) at net.minecraft.server.MinecraftServer.o(SourceFile:678) at net.minecraft.server.MinecraftServer.a(SourceFile:466) at dsk.a(SourceFile:88) at dsk.d(SourceFile:104) at net.minecraft.server.MinecraftServer.run(SourceFile:606) at java.lang.Thread.run(Thread.java:745) Caused by: j: Loading NBT data at hv.a(SourceFile:444) at hv.a(SourceFile:81) at ib.a(SourceFile:65) at hv.a(SourceFile:438) at hv.a(SourceFile:81) at hv.a(SourceFile:438) at hv.a(SourceFile:81) at ig.a(SourceFile:113) at ig.a(SourceFile:78) at ig.a(SourceFile:74) at btp.c(SourceFile:50) at ui.d(SourceFile:533) at ui.e(SourceFile:303) at java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1590) ... 8 more Caused by: java.io.EOFException at java.io.DataInputStream.readUnsignedShort(DataInputStream.java:340) at java.io.DataInputStream.readUTF(DataInputStream.java:589) at java.io.DataInputStream.readUTF(DataInputStream.java:564) at il.a(SourceFile:41) at hv.a(SourceFile:438) ... 21 more A detailed walkthrough of the error, its code path and all known details is as follows: --------------------------------------------------------------------------------------- -- System Details -- Details: Minecraft Version: 19w07a Operating System: Mac OS X (x86_64) version 10.13.4 Java Version: 1.8.0_74, Oracle Corporation Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation Memory: 1431255432 bytes (1364 MB) / 2147483648 bytes (2048 MB) up to 2147483648 bytes (2048 MB) 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.