I was recently able to access facetime effectivly yet recently it signed me out of facetime and wont let me sign back in?

I used to be able to access facetime with my apple ID email adress. Recently facetime signed me out and after filling in my apple ID and clicking sign in it took me to the page where you get to pick what email address you would like to use, after typing in multiple different emails including my apple ID email it kept knocking me back to the page where you enter your apple ID. Does anyone know how to get FaceTime working again?!