product gallery showes stacked uneven

Hi

I have this issue.

normallu it would work and display like so
https://mayli-jewels.com/product/rainbow-moonstone-fancy-verti/

However it seems like when I use this plugin to have add-ons on this product page. The product gallery does not function anymore.
https://mayli-jewels.com/product/lapis-lazuli-september-december-gold-plated-birthstone-necklace/

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