Facebook button not registring likes on some pages

[x3n0m0rph]

Hi,

I have a little problem with the facebook like button - when someone clicks on the like button is not registring the like. This happends like.. on half of my products pages..

Give it a try on this page:
http://www.secretgarden.ro/lumanari-de-botez/68-lumanare-de-botez-pe-rotund-din-orhidee-si-trandafiri.html

And.. working in this page for exemple:
http://www.secretgarden.ro/57-buchet-din-17-trandafiri-colorati.html

Another problem is that on few pages (from the ones that can be "liked" is sending the page to facebook with a blank picture.

I am using prestashop 1.4.2.5 with FBopengraph module and AddThis code.

Any ideas?