iMessage signed out and won't turn back on
Help, I have the notification that my iMessage is signed out of my apple ID so I am not receiving messages. I have gone into settings, turned on iMessage, and then it says there is an error signing in my number. So it won't sign into my apple ID, just continual error message. I tried turning my phone on and off, I even signed out of my apple ID on my phone and re-signed back in. Nothing has worked. It is a couple days after the latest ios update 15.4.1, did that mess it up?
iPhone 13
