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[21:41:25 ERROR]: Caught previously unhandled exception :
[21:41:25 ERROR]: Paper Async Command Builder Thread Pool - 63
java.util.ConcurrentModificationException: null
at java.util.TreeMap$PrivateEntryIterator.nextEntry(TreeMap.java:1486) ~[?:?]
at java.util.TreeMap$ValueIterator.next(TreeMap.java:1531) ~[?:?]
at net.minecraft.commands.Commands.fillUsableCommands(Commands.java:479) ~[?:?]
at net.minecraft.commands.Commands.sendAsync(Commands.java:443) ~[?:?]
at net.minecraft.commands.Commands.lambda$sendCommands$4(Commands.java:416) ~[?:?]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) ~[?:?]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) ~[?:?]
at java.lang.Thread.run(Thread.java:833) ~[?:?]


Ai biết fix ko chỉ vs ạ, cảm ơn