Hi @Sophie_a_n_n_a_n_i_n ,
Adam from Airtable here. Sorry to hear about the trouble.
We recently added an Automation troubleshooting article to our support center. There is a section on reconnecting accounts.
The most frequent cause of this error that I’ve run into is after someone has changed their Google password. Next most likely is when a sheet is moved from a personal folder into a shared folder in Google Drive. If reconnecting the account doesn’t solve the issue, then reach out to our support team with the suggested information at the bottom of the support article that I linked to above.
Hope this helps~~ :slightly_smiling_face: