video background doesn’t show on categories page

Hi everyone,

I’m having an issue in displaying the background video on the single category page.

For the other pages I’m using the metabox that comes with the plugin, but when I open a page that displays all items from a single category (for example in my site: “Pannelli in Acciaio” on the “prodotti” child menu — https://pannellitermici-srl.it/category/pannelli-in-acciaio/), the metabox and the background video do not display.

I tried to edit the archive.php and the functions.php files (I’m working on a child theme), but can’t get how to add the metabox function. Alternatively, I can use a shortcode, but when I tried to put the code on archive.php, the video still dosen’t show.

For what concerns the page that displays all the articles from all categories (in my case “prodotti” — https://pannellitermici-srl.it/prodotti/), the video works without any issue (in this case I can use the metabox while modifying the page on the “pages” menu in WP-admin).

The problem is that I can’t assign the same template (or different template adding the metabox function) to the single category page and to the post page or content page.

Thanks in advance for you help,
Sincerly,
Andrea Borin

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