Plugin displays all content, with no like gateway

Hello, I'm implementing Pay with a Like for a PDF download that you can get once you share/like the page. This is my post: and it is not working (it displays the download button right away instead of the sharing screen.

My code is: [pwal id="46960462" description="Comparte para tener acceso a la descarga"]<img style="vertical-align: middle;" alt="" src="" width="281" height="132" />[/pwal]

Can you help me?