Unable to verify with old Italian national ID (paper)

Hello,
I’ve received a document to sign from a french notary which requires identity verification. I’m doing the verification from Italy with an italian ID document.

The document used is an Italian ID card issued in 2017, it is not a plastic card but made of paper folded in two parts, thus providing 4 pages. By following the identification procedure for smartphone it is initially clear that the instructions apply for a plastic ID card where there is a front (with photo) and a back, while with the 4 pages ID document it is unclear how to put the document for front and back scanning from webcam.

I tried by the way 4 or 5 times trying to provide different scans of the ID paper receiving this error: “Malheureusement, votre identité n’a pas été vérifiée.” until reaching the limit of attempts.

The notary says that I need to contact Docusign to solve the problem, but I’m not a Docusign customer and I cannot find any phone number nor other types of contact from the web.

Do you have any suggestion on how to solve this problem? Thank you.