I Added an SSL Certificate to My Website and Now I Cannot Edit

If you added an SSL certificate and cannot edit anymore with Elementor, replace the URL of your website in the tools of Elementor.

To do that, please follow this procedure:

https://docs.elementor.com/article/218-i-changed-the-url-of-my-website-and-elementor-does-not-work-anymore

Replacing the URL, in this case, will also prevent saving issues:

https://docs.elementor.com/article/185-the-save-button-does-not-work

Please note that when you modify your URL, you have to make sure that you change the URL in your WordPress Dashboard, in Settings > General. Moreover, the WordPress Address (URL) and the Site Address (URL) should be identical.