OK so the link is only accessible with a login, and from your screenshot I can see that the first name field is associated with the Mautic field of First Name, and ditto for the email.
When you created a form in Elementor, are you using the Mautic shortcode or a manual insertion of your form (by copying the HTML code of your Mautic form)? If not, you will need to find a way to push the form data over into Mautic, either via a plugin, integration or some other way to send what is submitted back over to Mautic.
Finally, please check that you don’t have any active filters on your contacts list as this has caught me out before now:
