Could not sign in to iMessage
I have a MacBook Pro which I have been using iMessage on. However, out of the blue one day, it stopped working and now I'm trying to log back into my iMessage. I enter in my Apple ID information but
"Could not sign in to iMessage. An error occurred during activation. Try again."
keeps popping up.
What can I do at this point?
I've already tried resetting my MacBook Pro, tried signing out and in of my Apple ID on all devices, tried updating my systems, and retried logging into iMessages.
Does anyone have a suggestion?
(Also, I have the same problem with my MacBook Pro's FaceTime application.)
Thank you!
MacBook Pro 13", 10.14