[Ms-SchedulerPool-0] [17:19:40] (GameManager.lambda$remover$1) - INFO - Removed instance with id 0
java.util.concurrent.ExecutionException: java.util.ConcurrentModificationException
[Ms-SchedulerPool-0] [17:19:43] (GameManager.lambda$remover$1) - INFO - Removed instance with id 2
        at java.base/java.util.concurrent.FutureTask.report(FutureTask.java:122)
        at java.base/java.util.concurrent.FutureTask.get(FutureTask.java:191)
        at net.minestom.server.UpdateManager.serverTick(UpdateManager.java:101)
[Ms-SchedulerPool-0] [17:19:43] (GameManager.lambda$remover$1) - INFO - Removed instance with id 1
        at net.minestom.server.UpdateManager.lambda$start$0(UpdateManager.java:74)
        at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
        at java.base/java.util.concurrent.FutureTask.runAndReset(FutureTask.java:305)
        at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:305)
        at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
        at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
        at java.base/java.lang.Thread.run(Thread.java:834)
Caused by: java.util.ConcurrentModificationException
        at java.base/java.util.HashMap$HashIterator.nextNode(HashMap.java:1493)
        at java.base/java.util.HashMap$KeyIterator.next(HashMap.java:1516)
        at net.minestom.server.instance.InstanceContainer.UNSAFE_unloadChunks(InstanceContainer.java:808)
        at net.minestom.server.instance.InstanceContainer.tick(InstanceContainer.java:790)
        at net.minestom.server.thread.ThreadProvider.updateInstance(ThreadProvider.java:143)
        at net.minestom.server.thread.PerInstanceThreadProvider.lambda$update$1(PerInstanceThreadProvider.java:56)
        at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
        at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
        ... 3 more