Another Facebook syncing issue

[Numbskill]

When I go to manage my accounts and go into my Facebook account I get this screen:

As you can see, I can't edit the username, so I can't really do anything with the account settings. Any suggestions?

 

[Abe21599]

clear data/cache for the app maybe?

 

[TwerpPoet]

Or maybe go ahead and choose the remove account. If it works then you can add it again with the correct user name and password.

This could cause some syncing glitches though. So try the other things first.