Sorry to hear about the problems on your site. That's never fun to deal with.
As for the image issue, the Open Graph - Content plugin was installed, but wasn't published. I went ahead an published it, and things seem to be working well now. The proper og:image is being inserted. Facebook is recommending that you use a larger image, but that's something you can take care of. For more information on what Facebook 'sees' about your page, use the tool below:
developers.facebook.com/tools/debug/og/o...ouwen-zen-ottoo.html
Hope that helps, and best of luck,
Alex