---- Minecraft Crash Report ---- // Why did you do that? Time: 09.07.18 11:34 Description: Ticking memory connection java.lang.IllegalStateException: Not a JSON Object: null at com.google.gson.JsonElement.getAsJsonObject(JsonElement.java:90) at wk.a(SourceFile:82) at wk.<init>(SourceFile:48) at vl.a(SourceFile:923) at tb.<init>(SourceFile:162) at vl.g(SourceFile:443) at ua.b(SourceFile:113) at ua.X_(SourceFile:65) at hw.a(SourceFile:238) at tx.c(SourceFile:170) at net.minecraft.server.MinecraftServer.w(SourceFile:716) at net.minecraft.server.MinecraftServer.v(SourceFile:623) at dfa.v(SourceFile:155) at net.minecraft.server.MinecraftServer.run(SourceFile:525) at java.lang.Thread.run(Thread.java:748) A detailed walkthrough of the error, its code path and all known details is as follows: --------------------------------------------------------------------------------------- -- Head -- Thread: Server thread Stacktrace: at com.google.gson.JsonElement.getAsJsonObject(JsonElement.java:90) at wk.a(SourceFile:82) at wk.<init>(SourceFile:48) at vl.a(SourceFile:923) at tb.<init>(SourceFile:162) at vl.g(SourceFile:443) at ua.b(SourceFile:113) at ua.X_(SourceFile:65) at hw.a(SourceFile:238) -- Ticking connection -- Details: Connection: hw@1742e0f2 Stacktrace: at tx.c(SourceFile:170) at net.minecraft.server.MinecraftServer.w(SourceFile:716) at net.minecraft.server.MinecraftServer.v(SourceFile:623) at dfa.v(SourceFile:155) at net.minecraft.server.MinecraftServer.run(SourceFile:525) at java.lang.Thread.run(Thread.java:748) -- System Details -- Details: Minecraft Version: 1.13-pre6 Operating System: Linux (amd64) version 4.14.15-1-ARCH Java Version: 1.8.0_172, Oracle Corporation Java VM Version: OpenJDK 64-Bit Server VM (mixed mode), Oracle Corporation Memory: 1321408624 bytes (1260 MB) / 1644167168 bytes (1568 MB) up to 2147483648 bytes (2048 MB) JVM Flags: 7 total; -Xmx2G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M 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.