The Open Graph tag on both of those pages is incorrect and pointing to the homepage instead of the current page:
<meta property="og:url" content="http://www.mazalien.nl"/>
So even though there's an image tag and description tag on the page with the share button, when FB scrapes the page, it looks at what the og:url is pointing at to grab an image and description to display. Have you set any defaults in the backend Social Meta > Configuration area for URL? If so, please remove the og:url setting. JFBConnect determines the value based on the current page.
Remember, once you make any changes to the OG tags, you'll need to manually re-scrape
here on FB
to get the new values.
-Melissa