---- Minecraft Crash Report ---- // Shall we play a game? Time: 27/04/19 14:58 Description: Exception ticking world java.util.ConcurrentModificationException at java.util.ArrayList$Itr.checkForComodification(ArrayList.java:901) at java.util.ArrayList$Itr.next(ArrayList.java:851) at bhu.a(SourceFile:72) at vg.a(SourceFile:317) at net.minecraft.server.MinecraftServer.b(SourceFile:827) at net.minecraft.server.MinecraftServer.a(SourceFile:764) at dxh.a(SourceFile:128) at net.minecraft.server.MinecraftServer.run(SourceFile:632) at java.lang.Thread.run(Thread.java:745) 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$Itr.checkForComodification(ArrayList.java:901) at java.util.ArrayList$Itr.next(ArrayList.java:851) at bhu.a(SourceFile:72) at vg.a(SourceFile:317) -- Affected level -- Details: Level name: 1.14 Seed All players: 1 total; [vh['B34rd0'/122, l='1.14 Seed', x=449.39, y=132.59, z=-132.98]] Chunk stats: ServerChunkCache: 4043 Level seed: 3454883109557120063 Level generator: ID 00 - default, ver 1. Features enabled: true Level generator options: {} Level spawn location: World: (-192,63,-176), Chunk: (at 0,3,0 in -12,-11; contains blocks -192,0,-176 to -177,255,-161), Region: (-1,-1; contains chunks -32,-32 to -1,-1, blocks -512,0,-512 to -1,255,-1) Level time: 3589410 game time, 3804749 day time Level dimension: 0 Level storage version: 0x04ABD - Anvil Level weather: Rain time: 74704 (now: false), thunder time: 111100 (now: false) Level game mode: Game mode: survival (ID 0). Hardcore: false. Cheats: false Stacktrace: at net.minecraft.server.MinecraftServer.b(SourceFile:827) at net.minecraft.server.MinecraftServer.a(SourceFile:764) at dxh.a(SourceFile:128) at net.minecraft.server.MinecraftServer.run(SourceFile:632) at java.lang.Thread.run(Thread.java:745) -- System Details -- Details: Minecraft Version: 1.14 Operating System: Windows 10 (amd64) version 10.0 Java Version: 1.8.0_51, Oracle Corporation Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation Memory: 5200390560 bytes (4959 MB) / 6543114240 bytes (6240 MB) up to 8589934592 bytes (8192 MB) JVM Flags: 9 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xss1M -Xmx8G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M Player Count: 1 / 8; [vh['B34rd0'/122, l='1.14 Seed', x=449.39, y=132.59, z=-132.98]] Data Packs: vanilla Type: Integrated Server (map_client.txt) Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.