You may want to look into why all the other navigation links have a <base href=”https://www.findandconvert.com/> and the only navigation tab that doesn’t have a base reference is the Blog tab. It’s possible that all you need is a base ref since the blog was moved to the findandconvert server. I also noticed that you dont have a <body id> tag that may or may not be significant. Most stand alone blogs have a <body id> tag, however since your blog is hosted on the findandconvert host, it may be looking for that ID.
I’m sorry the problem code is not jumping out at me so this feels like a grasping at straws to help narrow your search to the core problem.