Did you change your ID or create a new one?
What to do after you change your Apple ID or password - Apple Support
Check the App Store and iTunes Store to see if there are any updates for apps/purchases. A request for an old Apple ID password is often caused by updates to apps/purchases that were made when using the old ID. Those purchases are tied to the old ID and can't be transferred. One option is to delete the apps/purchases made by the old ID and download them using the new ID if desired.