Java Script does not work on mobile site version on desktop version it does

Java Script does not work on mobile site version on desktop version it does

Hello!
I use instafeed.js to generate an instagram feed on my website.
Everything workes fine for the desktop version.
But for the mobile version of the site it shows nothing.
Please check http://www.verenaweninger.at/instagram-feed.html vs  http://www.verenaweninger.at/mobile/instagram-feed.html
What can I do to get the stuff working on the mobile site?

Thank you!