Plugin doesn't work not in pages nor in posts

I've setup the plugin on my site, and wanted to hide content on some static page.
I've set everything up and had disabled as default for all pages and posts.
I went to my page and set it up to work there (changed status to "enabled").
It had no effect on page.
I've cleared cache - still, no change.
I'm using chrome incognito... might this be the issue?

Anyway, same goes for "posts" as well.
Here's my blog:
The first post (snake game) should be liked. I've even went ahead and used the shortcode on the game itself - to no avail.

Any idea why this happens and how to make it work?