Signing back on to iMessage
About a week ago, I kept receiving messages like my Apple ID didn’t exist, but I was never signed out of my FaceTime or iMessage on my iPad. I just wasn’t able to buy apps. Today, my iPad recovered my Apple ID, I changed the password successfully and now my iPad won’t allow me to sign back into my iMessage and FaceTime. It says an error happened. This is my only means of communication other than a landline. How do I fix this?
iPad mini 4, iPadOS 13