[Plugin: NextGEN Gallery] Thumbnail descriptions not showing up

On this gallery:
https://www.miramarofficefurniture.com/used-office-furniture/

I need small descriptions under each of the thumbs, similar to: https://www.emrexoticbirdbreeder.com/bird-photo-gallery/

I’ve adjusted the css to be exactly the same on both sites. Is there an option I can choose that will allow the descriptions to show? Or what am I missing?

Appreciate any & all responses.

ACA Web

https://www.ads-software.com/extend/plugins/nextgen-gallery/