iPhone 11 has a number on the screen with call or cancel but when I cancel it comes back
My iPhone 11 has a phone number on the screen with call or cancel underneath it but every time I go to cancel it just comes back, or if I press call it does the same thing. It won’t let me turn the phone off or restart, it just won’t let me do anything. Can someone please help me?
[Re-Titled by Moderator]
iPhone 11, iOS 14