Registration Form

I have forgotten how to do this. I have a registration form, no problem. I have a page, student-registration that call the form. I am the administrator and am logged on. I need to modify the student-registration page using elementor. When I go to edit the page with elementor, I get a page that says that I can not edit it because I am already registered.

How can I edit this page, when I am already logged in to the site?

The page I need help with: [log in to see the link]