To change a user name.
If possible, avoid changing the user name. One issue is that the user name and email address are connected. There are two ways to do this:
users
database, then the profiles
table
and search for the user profile by name and then edit the record and change the nameauth_N
database, then the users
table, search for the username, edit the record and change the name. This will fix the user_websites() method.