Blogs export to other website vie rss using widgets like elfsight finial dest wix website via html p

On the blog page of my store -

I have an RSS link, which I need because I will take this link (blogs) and place it into widgets, which will go on my other website so that I don’t have to copy-paste the exact same blogs. But the problem is that this RSS LINK gets as text, not an XML file, Widget company that I’m using, I’ve emailed them as well (https://elfsight.com/), but they told me that the issue is with the code and website itself. I agree because I’ve tried to use it even from a different Shopify store, and it works, but not mine. I spent much research and time finding freelancers, but all of these people refuse to help, like WHAT, so PLEASEEEEEEEE help)!!!