Problem with lightbox-images mobile landscape, help

Hello anyone,

I am building my second website, a small-one with the Nexus template. I replaced in the home-portfolio-section, the originale link-blocks with Lightboxes/images. But on the mobile landscape-mode is something wrong with the images.

Is there someone who can help me out?

https://webflow.com/design/fleur?preview=0c0b16badb002304a864737db2d56938

Masha Danki,
Corine