GRAND FIA gallery

I am using the GRAND FIA photo gallery, currently with one of the free skins (stylish grey) on a testing site. It works well on the web, however, the photo gallery does not work at all on an Iphone (it shows thumbnails and the first photo in an unstyled way, but clicking other thumbnails does not load other images). I deactivated all other plugins, but it is still not working.

What might be the reason?