---- Minecraft Crash Report ---- // Why did you do that? Time: 5/31/18 1:41 PM Description: Exception in server tick loop i: Non [a-z0-9_.-] character in namespace of location: #minecraft:inventory_changed at om.(SourceFile:35) at om.(SourceFile:43) at q.a(SourceFile:30) at q.b(SourceFile:46) at l$a.a(SourceFile:316) at oy$1.a(SourceFile:41) at oy$1.deserialize(SourceFile:37) at com.google.gson.internal.bind.TreeTypeAdapter.read(TreeTypeAdapter.java:69) at wt.a(SourceFile:493) at wt.a(SourceFile:518) at wt.a(SourceFile:538) at oy.b(SourceFile:66) at oy.a(SourceFile:97) at uq.c(SourceFile:123) at uq.a(SourceFile:106) at net.minecraft.server.MinecraftServer.a(SourceFile:1369) at net.minecraft.server.MinecraftServer.a(SourceFile:356) at dik.a(SourceFile:82) at dik.d(SourceFile:132) at net.minecraft.server.MinecraftServer.run(SourceFile:501) 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: 18w22c 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: 317552272 bytes (302 MB) / 824705024 bytes (786 MB) up to 1908932608 bytes (1820 MB) JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx2G Profiler Position: N/A (disabled) Player Count: 0 / 8; [] Data Packs: vanilla, file/pack (incompatible) Type: Integrated Server (map_client.txt) Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.