header ads inactive

Hi all,
my site is https://www.80s.it and i’m using wp 4.5

Everything works fine after the update to the new Hueman but…the header widget is inactive.
I try to put in it the search and the text widget (with the google adsense code) but it doesn’t work.

The “display a widget in your header” voice in the Header>header advertisement widget is selected.
What’s wrong?

Thanks in advance,
Daniele