Jetpack Images issues

I have been having issues with images not showing since last Friday afternoon. First tried problem solving mode; even with all plugins deactivated problems still exists. Then contacted hosting, followed bij theme creator. They told me Jetpack CDN was causing the issues and disabled it. But part of the problem still exists.

Last Friday no images (from that moment onward) showed at all. Not on the homepage, not in articles published, not in the newsletter and not when sharing on social media. I could see them in my media library and when working on an article.

Now with CDN apparently disabled: Images on homepage and single pictures (but not galleries) in articles appear. Newsletter also shows an image. But social media sharing still not.

I now changed the galleries to thumbnail raster, but hate the way it looks: https://saudadesdeportugal.nl/alto-alentejo-middenstand/

Is there any way to solve this issue and go back to how things where before please?!

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