Doesn't work on mobile

I’ve tried using the search function on my mobile site (using two different Mobile themes, one from Jetpack and one from Elegant Themes), and the search drop-down only shows a few blank lines with radio buttons. It works fine on the full site, at https://pmppals.net/find-a-surgeon-2/. Please advise if there’s a way to get this to work on mobile.

Thank you.

https://www.ads-software.com/plugins/filter-custom-fields-taxonomies-light/