GD – Drop down menus NOT (always) working

I am using GeoDirectory, Version: 1.6.30
I’m using Supreme Directory Theme, Version: 1.1.9

My site is: https://counsellistings.com

QUESTION: Sometimes the first two drop down options: “Services” and beside it: “Select Services” do not allow selection and do not show the other choices.

The remaining choices all always work.

AND, once one moves off of this front page, the option choices always work.

I say this “Sometimes” happens. I can’t narrow down when. I’ve tried different browsers and different computers. The site always functions properly on a PHONE. It’s just the computer where it sometimes doesn’t work.

This WAS an open topic in September 2018. It was closed as the problem seemed to have resolved. It’s BACK!!

Suggestions?….

Thanks!!

J