Hello,
Sorry for the inconvenience but we have checked and confirmed this issue on your Site by activating the default WordPress Theme and found out that Elementor editor is not working with the default WordPress Theme too. See this Video in this regard: https://jumpshare.com/v/VcsAUFgnowN2tF65rpm9
So, it seems that there is some issue at your Server End which is causing the conflict for the Elementor editor. As we are also noticing CDN/Cloudflare on your Site too. So, according to Elementor some options of it can also cause the issue.
So, please once contact your Hosting Provider and also check the following Article from Elementor regarding this issue: https://elementor.com/help/cant-edit-with-elementor/
Hope this helps 🙂
Best Regards.