---- Minecraft Crash Report ---- // Ouch. That hurt :( Time: 19.03.19 15:04 Description: Exception ticking world java.util.ConcurrentModificationException at java.util.ArrayList$Itr.checkForComodification(Unknown Source) at java.util.ArrayList$Itr.next(Unknown Source) at bfx.K(SourceFile:614) at vc.a(SourceFile:400) at net.minecraft.server.MinecraftServer.b(SourceFile:816) at net.minecraft.server.MinecraftServer.a(SourceFile:755) at dwb.a(SourceFile:128) at net.minecraft.server.MinecraftServer.run(SourceFile:630) at java.lang.Thread.run(Unknown Source) A detailed walkthrough of the error, its code path and all known details is as follows: --------------------------------------------------------------------------------------- -- Head -- Thread: Server thread Stacktrace: at java.util.ArrayList$Itr.checkForComodification(Unknown Source) at java.util.ArrayList$Itr.next(Unknown Source) at bfx.K(SourceFile:614) at vc.a(SourceFile:400) -- Affected level -- Details: Level name: #Noracist All players: 1 total; [vd['Jokke89'/2, l='#Noracist', x=-157.99, y=72.00, z=486.01]] Chunk stats: ServerChunkCache: 4085 Level seed: 5346227721037004051 Level generator: ID 00 - default, ver 1. Features enabled: true Level generator options: {} Level spawn location: World: (60,65,-587), Chunk: (at 12,4,5 in 3,-37; contains blocks 48,0,-592 to 63,255,-577), Region: (0,-2; contains chunks 0,-64 to 31,-33, blocks 0,0,-1024 to 511,255,-513) Level time: 1663967311 game time, 223086 day time Level dimension: 0 Level storage version: 0x04ABD - Anvil Level weather: Rain time: 87629 (now: false), thunder time: 96221 (now: false) Level game mode: Game mode: creative (ID 1). Hardcore: false. Cheats: false Stacktrace: at net.minecraft.server.MinecraftServer.b(SourceFile:816) at net.minecraft.server.MinecraftServer.a(SourceFile:755) at dwb.a(SourceFile:128) at net.minecraft.server.MinecraftServer.run(SourceFile:630) at java.lang.Thread.run(Unknown Source) -- System Details -- Details: Minecraft Version: 19w11b Operating System: Windows 10 (amd64) version 10.0 Java Version: 1.8.0_162, Oracle Corporation Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation Memory: 1112371216 bytes (1060 MB) / 1915224064 bytes (1826 MB) up to 2863661056 bytes (2731 MB) JVM Flags: 3 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xss1M -Xmx3G Player Count: 1 / 8; [vd['Jokke89'/2, l='#Noracist', x=-157.99, y=72.00, z=486.01]] Data Packs: vanilla Type: Integrated Server (map_client.txt) Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.