Hi Peter,
Thank you for the reply. I finally found the issue, I protected the wp-admin folder with password and was thinking it didn’t affect the “my account” page buid into the website, just the admin. Without the “woocommerce integration” option activated, everything worked fine but with the option activated it asked me the “user and password” nonetheless. I was able to retrieve “0” with the wp-admin ajax file but I had an issue with the vulnerabilities scan who said that the site was not allowing wordfence to scan files. So after searching for an answer, I found an article on your support speaking about the “flaws” of protecting wp-admin with password using wordfence and it helped me editing the .htaccess accordingly. I think it gives me the best of both solution now and it seems to work flawlessly so far, in the scan area and accessing the account page.
Regards.
Guillaume