Thanks for the login details to your site. I have checked the product URL that you shared with us and I edit it with Elementor, Add some widgets in it then I checked on the front end and found no issue the changes I have made working just fine. I have record a video for you here is the video link: https://streamable.com/mke6pv please watch the complete video for a better reference to understand.
Please always try to check your site after clearing the browser cache.
Regards 8Themes Team.
One standard license is valid only for 1 project. Running multiple projects on a single license is a copyright violation.