hi all,
I have added a "share to facebook" button in all my website's articles.
Clicking this button would normally open a new window showing the facebook post's preview: the post's title, the post's description, and the ability to select one of the page's images, as a thumbnail to my facebook post.
Without no reason, the past few days, this fuctionality has problems. There are no thumbnails to select and eventually the post in facebook looks like
"WEBSITE URL" [post title] website url... [post description]
Can you please help me find what's the reason for this, because I couldn't manage to solve it myself.