This gets fixed with a reset and if your not willing to that reset all plugins by doing /reset on your server if it says you do not have permission to do this you can add an action sign and put /reset on it if you do not have the action plugin better luck next time
As me and my team start updating Pocketmine for the best experience of featres and less bugs. We dont bite bigger than we can chew. Anyways Pocketmine-M3 wasn’t original enough. We need some eriginal ideas for a names to vote on for our software. If you can help please dont be afraid to give us an idea.\
Names So far:
Name it Snowcast ! based off of the sega dreamcast
When you try to edit your profile and your username is shorter than the minimum username length. I think it happens when someone registered an account with a valid amount of characters, and the limit was later brought up.