iPhone is locked to deleted Apple ID
Hello, I recently deleted one of my apple ID that is currently on one my iPhone. Now my iPhone is asking the password of my deleted apple ID to be able to sign-out from iPhone. Since the apple ID is not valid anymore (because it is deleted now), i cant enter the password because it doesn't exists anymore although I know the password of the deleted apple ID. I can't erase or delete my iPhone because it always asks the password of the deleted apple ID. How can I remove this deleted apple ID from my iPhone? Regards.
[Re-Titled by Moderator]
iPhone 12