Facebook Like/G+ buttons don't work

The website in quesiton:

http://top100lists.net/

Tried testing with Chrome(dev), Firefox, Safari. Opera and IE.

First of all, when clicking on FB Like, it opens up the Post To Facebook inline and you have to scroll in order to post. It posts the like on FB, but it doesn't reveal the full page.

I'm using the W3 cache plugin, but disabling it didn't do anything.

JS is minified - non blocking

On page load, Firebug gives me the following error:

pwal_data is not defined

Thanks.