[18:26:14 INFO]: Timmer issued server command: /prefix reload
[18:26:14 ERROR]: Caught previously unhandled exception :
[18:26:14 ERROR]: Paper Async Command Builder Thread Pool - 1
java.util.ConcurrentModificationException: null
at java.base/java.util.LinkedHashMap$LinkedHashIterator.nextNode(LinkedHashMap.java:1023) ~[?:?]
at java.base/java.util.LinkedHashMap$LinkedEntryIterator.next(LinkedHashMap.java:1058) ~[?:?]
at java.base/java.util.LinkedHashMap$LinkedEntryIterator.next(LinkedHashMap.java:1055) ~[?:?]
at java.base/java.util.AbstractMap.hashCode(AbstractMap.java:527) ~[?:?]
at com.mojang.brigadier.tree.CommandNode.hashCode(CommandNode.java:145) ~[paper-1.21.10.jar:1.21.10-130-8043efd] at java.base/java.util.HashMap.hash(HashMap.java:338) ~[?:?]
at java.base/java.util.HashMap.put(HashMap.java:618) ~[?:?]
at net.minecraft.commands.Commands.sendAsync(Commands.java:497) ~[paper-1.21.10.jar:1.21.10-130-8043efd]
at net.minecraft.commands.Commands.lambda$sendCommands$6(Commands.java:479) ~[paper-1.21.10.jar:1.21.10-130-8043efd]
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144) ~[?:?]
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642) ~[?:?]
at java.base/java.lang.Thread.run(Thread.java:1583) ~[?:?]

Great plugin! But I found some bugs: "/prefix When you open the menu, clicking on any named item in the backpack will change to the name of that item"

Can I move this plugin to the Chinese Minecraft forum www.mcbbs.net I'll redirect the download link to spigotmc and won't claim it's my plugin I just want more people to know about this great plugin!