UpdraftPlus Backup/Restore not working

We have been using UpdraftPlus as a backup. Going into my backup, it has not done anything for over a year. When I go into the settings, it is showing that I have authenticated my Google Drive account and everything matches, but I am getting the following message when I try to back it up.

“Have not yet obtained an access token from Google – you need to authorise or re-authorise your connection to Google Drive.”

Please advise