I installed the Pay with a Like Plugin on my site.
When clicking the Facebook like button you have access to the locked content.
But after some hours the button disappears and nothing is happening ie. content is locked again.
I tried on a different browser, only then the button appears, but after login into my FaceBook account no secret content appears. And the button disappears again.
You can check it at : http://hellosamples.com
I have installed these plugins:
-Exclude Pages from Navigation
-Google XML Sitemaps
-GPP Base Hook Widgets
-Pay With a Like
-Really simple Facebook Twitter share buttons
-WP Hide Post
-WP Social Toolbar
I use a Theme from GraphPaperPress (GPP)
Thanks in advance