How to integrate a form on a website with Google Sheets?

Question

Joomla

Hello!
There is a site made on Joomla. The site has a form created using the Perfect Popup AJAX Form module. It is necessary to implement the ability to send the data of the completed form to a Google Spreadsheet.
I went to the Integration tab on the form settings page, found the corresponding column:

I did everything as it is written in the hint, but after clicking on the "Grant Access" button, an error occurs:
401. That's an error.
Error: deleted_client
The OAuth client was deleted.
Request Details
That's all we know.
Tell me, please, who faced this problem or what other options are there for saving data from the form to a table (file)?