Hi Maryam,
1012.840 (3) Google Drive quota usage: failed to obtain this information: Error calling GET https://www.googleapis.com/drive/folder/about: (403) Access Not Configured. The API is not enabled for your project, or there is a per-IP or per-Referer restriction configured on your API key and the request does not match these restrictions. Please use the Google Developers Console to update your configuration.'
That's the problem, and the solution - it corresponds to performing step 2 of the setup instructions: https://updraftplus.com/support/configuring-google-drive-api-access-in-updraftplus/
Best wishes,
David