Need help with Open graph OG image

Hi,
I am having issues with the og:image. Often, the default facebook is used instead of the images with the article.
I have Jreviews 2.4.12.4 and JFBConnect 5.2.2
In some cases, when I try to share a Jreviews listing or any other article instead of pulling the images with the articles, the default facebook image is being used...
See here: leburkina.net/restaurants/restaurant-glacier-glory-ice (click on button Partager)
In other cases, the image is pulled without issues.
See here:
Here is my site: www.leburkina.net.
I was told on the Jreviews side that I have duplicate og tags being loaded/
<meta property="og:image" content="leburkina.net/media/reviews/photos/origi...-74-1390063428.jpg"/>
<meta property="og:image" content="leburkina.net/templates/rt_paradigm/images/logo/logo-og.png" />
How do I remove the second one? I believe that I put the logo-og.png image just in case when there is no image to be used it will be used instead... However, if it is causing conflicts, I won't use it.
Thanks