“Hide Featured Image” affects product gallery images

I am using the “Hide Featured Image” plug-in in an effort get rid of the big empty box in the middle of my product pages. It works. However, when I do this, it negatively affects the images in the product gallery below. To see what I mean, please refer to this page which has the featured image hidden: https://www.larashouseshelter.org/product/tshirt/

When the plug-in is set to “off” on the page, the product photos are coordinated properly with the color option chosen & that part works like a charm.

How can I get them to both work together?
THANKS

The page I need help with: [log in to see the link]