Why am I frequently having to log in to my AppleID?
i keep getting logged out of my AppleID. Also, I enter my password and it will lock me out of my account. I’m using the correct password each time.
Device or computer? Where are you being asked to log in?
Apple ID is locked or disabled
If you have changed your password, have you followed the steps in this article?
What to do after you change your Apple ID or password - Apple Support
If necessary, contact iTunes Support. Either use the form or scroll to the bottom of the page in the 2nd link. Follow through the screens to get a chat or telephone option.