Share url to facebook with K2 article - no thumbnail

Hi,
I need to be able to share pages from my website to my facebook pages, crucially with a thumbnail image... for a quick graphic representation to capture interest.
Unfortunately when I share the url, no image pops up.
eg.
http://www.zestytwists.com/index.php/ho ... containers


I get the link, I get the metadata, but no thumbnail image.
I am pretty sure this is a K2 but, but still work around.

I am using Joomla 3 & K2 v.2.6.6

Any ideas?
Thanks in advance.

Eirini

Ok... Solved it... had to set the image size to at least 200px by setting the K2 parameter > social tab > facebook images.

Then also debugged the page via the facebook debugger...
https://developers.facebook.com/tools/debug

Hi

Thank You for sharing solution with us.