Menu appearing when images is popped up

Hello! Thank you so much for this great plugin.

I’ve noticed that when I click on an image and it pops up, my site and menu text still show prominently (and are interactive) despite everything else covered in black overlay and are static.

Is there a way to make the site title/menu go behind the overlay and also be static when viewing an image? Thanks again!

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