Can’t Facetime Even Though I’m Signed into Apple ID

Help please!!!

As soon as I attempt to call someone on Facetime, it pops up with a notification telling me to “Activate the Facetime App by signing in with your Apple ID.”

I go to settings and see that I am already successfully logged into my normal Apple ID.

I have updated my phone to the latest software, I have signed out of Facetime and back in, I have turned off iMessage and Facetime and restarted my iPhone and I still end up getting the same notification.

Any advice?

Thanks in advance!