I have a message in the top left corner that says no service. In setting there’s no cellular carrier listed and next to cellular is says error. I can use WiFi in my house but no phone calls in or out. It’s happened on and off all day today and now I haven’t had any service for hours. I’ve done all the resets I could find online etc and still nothing. I need this fixed ASAP as I have a child with special needs and need to be able to make emergency calls if needed! Help!