Having issues with JS/Jquery in a website

We recently took over administration for a website built with Divi. The previous developer created the site using Divi, but the majority of it was done in code, to include the JS/JQuery functions. We found several issues that we were able to fix with the exception of one area with a tabbed section.

The page is https://ferriercustomhomes.com/resources/

There are tabs (icons) for Custom Homes, Remodeling, and Commercial. When clicked, all of the below content should slide up and new content will slide down. Custom Homes is the only tab that works properly. I looked at the code and the IDs on the Divi layout and everything appears to be done correctly, but the content is not showing on any of the other tabs.

I can provide the resources.js file that was written by the previous developer, or post it here if that is better. TIA.