Error in Blog Page

Hello,
I created a blog page and the articles are published automatically, all done well.
The problem is that the header goes beyond the first article
Ex .:
https://www.sensenapoli.com/blog/
Which file should I modify to resolve this problem? Also because in other pages the problem does not arise
Ex .:
https://www.sensenapoli.com/come-arrivare-a-napoli/

With the difference that the first is a page that acts as a blog and the other is a simple page

Help me Thank you