[00:23:00 ERROR]: Encountered an unexpected exception
java.util.ConcurrentModificationException: null
        at java.util.LinkedList$ListItr.checkForComodification(LinkedList.java:966) ~[?:1.8.0_275]
        at java.util.LinkedList$ListItr.remove(LinkedList.java:921) ~[?:1.8.0_275]
        at net.minecraft.server.management.PlayerChunkMap.func_72693_b(PlayerChunkMap.java:221) ~[ou.class:?]
        at net.minecraft.world.WorldServer.func_72835_b(WorldServer.java:351) ~[oo.class:?]
        at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:890) ~[MinecraftServer.class:?]
        at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:467) ~[nz.class:?]
        at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:784) ~[MinecraftServer.class:?]
        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:630) [MinecraftServer.class:?]
        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_275]
[00:23:00 ERROR]: This crash report has been saved to: /home/container/./crash-reports/crash-2021-05-28_00.23.00-server.txt
多世界插件
Multiworld在其他世界退出游戏再进入有几率崩溃

建议贴出来This crash report has been saved to: /home/container/./crash-reports/crash-2021-05-28_00.23.00-server.txt

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