Impossible to change page title

Hi,

anyone could please tell me how to change the word “articoli” into another word of my choice as my page title on my website?

this is the link:
https://www.cosaforte.org

I’m using Twenty Seventee Theme and I don’t see how to change this from the menu or by code.

Thanks everybody,

Max

The page I need help with: [log in to see the link]