Did you try resetting your MySQL password from the client area? Also, please don’t ping specific users to try and get help. That’s annoying at best and spammy at worst.
That wouldn’t be very helpful in this instance. The config file will show you the password Flarum is trying to use to access the database, but it doesn’t automatically know the correct database password.
There was no need to edit - the problem is that the people you tag receive a notification…Some even by email that someone has tagged them.
After a few hours after they received the notification,
what is written now, unlike what was written, is no longer important - you have already annoyed them in some way