there, I have a site on multisite and I've activate Pay

hey there,
I have a site on multisite and I've activate Pay with a Like on it. However, it doesn't seem to work. I'm trying to hide zip file behind the social wall but no idea why it doesn't work.
I've tried to deactivate caching plugin, but it didn't help.

Am I missing something obvious? I've attached screenshot of my settings.

That's how I'm trying to display it on the post page:
<iframe src="//www.youtube.com/embed/FrdA-AXMLNI?rel=0&controls=0&showinfo=0" width="853" height="480" frameborder="0" allowfullscreen="allowfullscreen"></iframe>
[pwal id="91435378" description="Share this video to download FREE EP"]Title[/pwal]

thanks,
Adam