The iPhone 6+ freezes when the Apple ID verification window pops up.

I'm sorry for the translation, the online translator helps me. The iPhone 6+ does not respond to the Apple ID verification pop-up window. The phone makes it easy to unlock it. But after unlocking, after 2 seconds, the Apple ID verification window pops up and gives two options for the "not now" and "settings" buttons, which cannot be pressed, they simply do not respond. After that, the phone stops responding to commands. It can be unlocked. It accepts calls and allows you to answer them. It even allows you to dial a phone number to make a call, but to do this, you must lock it every time in order to be able to dial at least one digit before this verification window appears again. How can I fix this issue?

[Edited by Moderator]