LAYERSLIDER ISSUE

Hi, i’ve a problem with a slider in homepage.
Until a few days ago everything worked perfectly but after updating the theme, the slider on the home is invisible.
I tried to insert the slider in a new page and it works normally, then I think it’s a problem of the homepage.

We would provide the login credentials but did not understand how to make the message private opening topic.

however, the problem is visible at the following address: http://www.agenziapiras.com,
in the main menu click on “servizi” (the page will scroll a couple of sections), the slider should appear in the empty space below the text menu (advertising | graphic | marketing ….).
I suspect it is a problem of javascript, but I do not know how to solve it. I have tried to enable the option “Put JS includes to body” in the global settings of my sliders, but nothing changes. Also the “Automatically start slideshow” option is active.

Any ideas?

Cheers

Riccardo