Apple ID

I got a message in the Apple ID column with a recommendation to sign in, because some services will not be available. The problem is, I've already signed in to my Apple account on my phone. Secondly, when I try to log in according to the recommendation, then after entering the password, the loading screen appears and that's it, I waited for about 20 minutes, but nothing on the screen has changed. I am using iPhone 12 Pro Max on iOS 14.5