Hi,
This looks like another plugin you have is loading their Google SDK over ours.
Another customer had this issue and found Duplicator Pro was causing the plugin conflict.
If you have that plugin can you temporarily disable it and try the restore again, if you don’t have that plugin can you disable each plugin one by one until you find the one causing the issue and report back here with the plugin name?
Alternatively you could download the backups from Google Drive directly and upload them to your site and then restore from the uploaded copy.
Best Wishes,
Ashley