Hi, it seems your site has issues not dependent on the plugin. You can test OG data used by the FB button here:
https://developers.facebook.com/tools/debug/og/object/
Your home page is fine, but entering some internal urls (e.g. https://blogbuzzter.de/2014/11/crowdfunding-herb-das-cannabis-gourmet-kochbuch/ ), I get mixed errors:
- Error Linting URL – An internal error occurred while linting the URL.
- Missing Required Property – The ‘og:type’ property is required, but not present.
So I guess FB blocked some pages of your site (not the home page) for some reason. You can see the same issue loading the button alone:
1) home page is working
https://www.facebook.com/plugins/like.php?href=http%3A%2F%2Fblogbuzzter.de%2F
2) internal page isn’t working
https://www.facebook.com/plugins/like.php?href=http%3A%2F%2Fblogbuzzter.de%2F2014%2F11%2Fcrowdfunding-herb-das-cannabis-gourmet-kochbuch%2F
Unfortunately my plugin is just plugging the official FB code inside your site, I can’t solve issues depending on external factors. I suggest you to contact the FB support about this issue.