help make responsive

I used Imagemapper and installed the Responsive imagemaps plugin. I thought it worked on mobile devices at first, but the text links no longer work (along the bottom of the image)
https://www.davidwesleyrichardson.com/portraits/

What can be done to get it working? I have to launch this site soon!

Thanks!

https://www.ads-software.com/plugins/imagemapper/