Website doesn’t display photos visible in Sydney/Elementor

How come my website does not display as it looks like when I’m working with it in Sydney/Elementor? The section with the three columns have photos, but they are displayed without photos on the website. I’m not sure which update caused this malfunctioning. How do I get the photos back in place?

This is how it should desplay:

But this is how it looks for the visitor:

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