Elementor cannot be used

Hello!

I am creating a webpage (Chinese version) and my website has connected to 3 more websites (different languages – they were created 3 years ago not by me). I saved the template from Japanese version and updated the text. I can edit everything via Elementor and it is reflecting in Elementor. But when it comes to webpage, color changings, image size are not shown as edited. I can only upload new information (images, text), but editing is not shown on the published page only in Elementor.

I do not have this issue on the other versions of websites, only with this Chinese one.

What should I do?