FB like and LinkedIn share is not being published on the social platforms

Hello,

We have installed pay with a like.
We have created a FB api key and the key is active.
We have overwritten the api key and secret key.
We have activated polling per 1 second.
We have activated the option that the user has to submit the form before reloading the page.

With the LIKE functionality: NO SUCCESS: nothing is published on the FB wall
Whit the LinkedIn functionality: NO SUCCESS: nothing is published on the linkedin profile

With the SHARE functionality: SUCCESS: the page is published on the FB wall

What did we miss?
http://publicevents.be/event/branding-for-success/

On the other hand, the page is refreshed and the content is shown... but the important part is missing, the like on fb and share on linkedin.