My iPad will not sign into FaceTime or iMessage

Facetime and iMessage have both stopped working on my iPad. I’ve tried singing in, now when I click on FaceTime it just says signing in. It’s been stuck signing for weeks now, I’ve restarted the app, ive deleted and reinstalled the app, I’ve restarted the iPad, I shut it off for a couple days. Still says signing in. Anyway to fix this.