Theme Not Working on Mobile

I moved over to SiteGround self hosted, and since I’ve been there I’ve used Apostrophe and Apostrophe 2 theme, and since the start for some reason when I go on mobile my theme doesn’t show up, but when on PC it works fine. I tried plugins that change the theme when people are on mobile, but still doesn’t work.
Any help would be appreciated.
Thanks.

The page I need help with: [log in to see the link]