Snapshot error and not uploading to Google Drive destination

I’m getting this error when I try to create a snapshot and send it to my Google Drive folder:

Error: Could not send file

Google_0814_Exception: Failed to start the resumable upload in…

I tried re-authorizing, but it didn’t work. I’ve also tried 3 different folders and I created a new project, but the issue is still there. I have deleted everything and started again. I have tried this on multiple sites too with no success.

Do I need to create a different project API for each site or can I use the same credentials for several sites, linking to one folder and then having a subfolder therein for each site?