Hello, @aslanoguz34,
Please watch the video I have shared in the private content area of this topic, the issue is with your Child Theme Customization Code, as soon as I activated the parent theme on your site, the fake live viewing worked.
It means you have some custom code in your child theme which is creating this issue on your site, so please contact your developer and ask them to check your Child Theme Customization code for you on your site.
Regards 8Themes Team.