Images disappear on mobile version

I’m new to Webflow, so I beg your pardon if this question is somewhat dumb, but I could not find a solution on the web.

Images not displaying on the mobile version
I can see them on preview, sometimes it disappears and it seems like a bug but I can’t find a solution how I can fix it


any help would be much appreciated!

Here is my site Read-Only: LINK
(how to share your site Read-Only link)