Some images not appear on mobile browsers

Hey,

if this is a solved question please delete.

On my page there are some images who didn′t appear on mobile.

First I thought it′s a lazy load issue and i inserted a snippet in my function php to suppress the lazy load function (from sitelogo) but safari on desktop is still facing this issue.

After a lot of trial and error only the first picture (under the header) on my homepage is still missing (and I dont know what I have really done).
For example on that page more images are missing: https://www.vital-generation.de/startseite/wassereinlagerungen-im-koerper-loswerden-ratgeber/

I really need your help Im totally lost on this

Thank you so far:)

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