I have fixed the first website. But the second doesn't work in that way, because not all the elements of the menu are on the same page! If I change the anchor as you said, the links don't work anymore if I am not on the homepage.
These are the links:
SERVIZI (this is an anchor link inside the home page)
BLOG (this is another page)
PORTFOLIO (this is another page)
CONTATTI (this is an anchor link inside the home page).
I show you the screenshot about the mobile view. You can see that "Blog" and "Portfolio" are different from the other three elements...and I want to make them all black