Constant requests for Apple ID
For the past 2 weeks my phone keeps asking me to enter my Apple ID quite often. When I bring up the screen where I input my ID the screen will shut down before I can type in my ID. I have to try doing it several times before I am able to get the screen to stay open long enough to enter my ID. Then within a day or two, sometimes hours, I will be asked for my ID again. I am also experiencing app screens failing to open or closing unexpectedly.
How can I correct this issue?
iPhone 7