repeatedly asking for the password of the old Apple ID user
I got my phone from a relative and they signed out of their Apple ID and all, so I signed into my Apple ID and I've had the phone for over a year now but the password for the old Apple ID keeps popping up every month or so. and I always press "not now" or ignore. how do I make this stop? it won't even let me update an app because it has the old users email and I can't delete that email and add mine in.
iPhone 11 Pro, iOS 15