Pinterest Lightbox button doesn´t appear

Hi everyone,

I just installed Pinterest Lightbox in this page http://egion.es/test/ I am using divi theme and nextgen gallery which is embebed inside Divi builder in this code:
[ngg_images gallery_ids=”2″ display_type=”photocrati-nextgen_basic_thumbnails”]

I don´t know why Pin it button doesn’t appear in the image down like this:
https://www.coblonal.com/interiorismo-pequeno-atico-amplia-terraza/

I do not know if I need active or edit something in nextgen gallery. Does anyone help me?

Thanks!

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