Apple ID

When I was at my chinese school, I connected to the guest wifi there, and when I got home both my facetime and message were signed out. when I try signing back in, it takes hours to load, then it says "unable to contact facetime server". I tried restarting, signing out completely from my apple id, etc. when I go into settings and select facetime or message, it just freezes and shows verifying and my email. this has been going on for almost 4 days. Does anyone have a solution?

Device: iPad Pro 9.7 inch

iPadOS 15.6