SmoothGallery and Pearl Theme problem

Hi
I founded it awesome to put JonDesign’s SmoothGallery (https://smoothgallery.jondesign.net/showcase/timed-gallery/) at the mainpage of my blog – https://www.predko.pl. So I downloaded all the files, put’em to the server, and following instructions I tried to put it on my page. If you see the source of the very mainpage – you would see that everything looks fine in the code, but it doesn’t appear at all. If you have any idea what is wrong – please give me a hand.

Thank you!
m.