Not able to activate facetime nor iMessage

I’m not able to sign in facetime or imessage. It started when I travel aboard, my facetime and imessage weren’t working. Then when I come back I tried all solutions that was suggested. To turn off facetime and imessage, restart phone, turn on again. It didn’t work, also I signed out from apple ID, and sign in again. I have option “Use your Apple ID for IMessage” but when I choose Sign in, nothing happens. No window pops or anything.