TOP UP - we are sorry, sth has gone wrong

None of my previously used Visa Cards top (with plenty of balance) won’t top up the Revolut account. Nothing happens other than error messages “we are sorry, sth has gone wrong, please try later”.
Lame, very lame.

Did you updated revolut app recently prior to this error?

Actually I don’t remember.I stopped using the service for some while since they already lost some funds of mine. Then a week later I tried the card again and for some miraculous reason card worked again.