Thank you for your feedback we are working on it to improve its features and hoping to launch next version of it very soon. May be that time you will not have any complain about this plugin.
have you added “Facebook AppID” in Recoomendation Bar Setting tab and “Facebook PageName(YOUR_PAGE_URL)” (which is the last part of your fb page URL https://www.facebook.com/YOUR_PAGE_URL) in Widget/Sidebar Likebox option tab from Settings?
Ok it should work well in WordPress 4.2.3. We have already tested it in this version. We have checked your site and it seems that some script has been changed in plugin files. We suggest you to delete and install the plugin again.
Ok it seems all correct. Can you provide us the wordpress version you are using and which other plugins on the page? And now your page is not opening, its redirecting to https://www.krakownanowo.pl/info/
To add the plugin to your post/page add only <!--facebook-page--> this code to your “text” view mode instead of “visual” mode from your admin panel. And set other settings from “Settings -> Facebook Page”
