Hi,
Please can you do this:
1) Update to the current release of UpdraftPlus (the video shows a previous release)
2) Press the ‘Authorize’ link in the Google Drive section of the ‘Settings’ tab (even if you’ve done this before), and complete authorisation.
3) Start a fresh backup. If, after 30 minutes, it has not completed, then please provide a link to your log file for the problematic backup. (You can download it from the “Existing Backups” tab of your UpdraftPlus settings page).
It’ll be too long to paste into the forum here, but you can download it to your computer, and share it with Google Drive, or paste it in pastebin.com, or any similar service, and post the link here.
Best wishes,
David