Catch Fullscreen Theme does not display image on mobile landing page

Hi there, I have created my website with the catch fullscreen theme (free version) and it works fine on desktop. I did not have a chance to check on iPad yet but on the mobile version the landing page does not display the images it does on the desktop version. When I then try to scroll done to "home" the image appears very briefly, but then is gone as I am already in the new screen. I am wondering why are the pictures (I have a slide show of multiple) not displayed on mobile? The site looks very plain without and I think it is critical to have this fixed. Would appreciate your help so much, already tried all sorts of things. The URL to the page is currently: wkx.973.myftpupload.com Haven't linked my domain until this is fixed. Many thanks! Anna