I use a Builder Yootheme template. If I insert the Sj Showcase module it works on all pages but not on the home page. I do not understand why

Dear rmetrangolo,

I checked your home page, there is a js error:
prnt.sc/yg3XDmcgMApb
It seems your site is conflicted jquery liberary. Please disable jquery.min.js from your module ol_testimonials

Thanks

Thank you so much, problem solved. I take advantage of the kindness to ask how to solve another problem. If I set source option in the Sj Cool Showcase module it loads, from plugin K, the articles of the category but not the video
attached. When I enter the embed code of a youtube video in K2 article, it tells me: "An error has occurred. Please try again later. (Playback ID: BZS8DS3Fon2E3hHm)
Further information.
How is it possible to build a video slider like in the following site?
preview.themeforest.net/item/urline-responsive-travel-news-joomla-template/full_screen_preview/18175595?_ga=2.173355107.1152980217.1617094618-1442681399.1617089422
Is there a guide?

Dear rmetrangolo,

I checked your embed video link doesn't work:
prnt.sc/fV9g23fqg_DI
//www.youtube.com/embed/?enablejsapi=1&version=3&playerapiid=ytplayer

In our demo, it's //www.youtube.com/embed/WIToAbOD4m4?enablejsapi=1&version=3&playerapiid=ytplayer

Please open them on Youtube site to check.

Thanks

Even if I post your video in a k2 plugin article, your demo video then doesn't open it in the home page. Just as I can't insert a background image in the box that contains the videos.
ex. the image of Venice on the site preview.themeforest.net/item/urline-responsive-travel-news-joomla-template/full_screen_preview/18175595?_ga=2.173355107.1152980217.1617094618-1442681399.1617089422

Dear rmetrangolo,

Can you send your site account (admin and ftp account) for us to check?
Please put it on the 'Only for staff' field when you reply.

Thanks