No Group Found – When trying to import groups via File
Sometimes, FB redirects you when you open the link given by the script. You have to save groups HTML file only from this URL;https://www.facebook.com/bookmarks/groups/
Saving groups from any other URL will not work for importing. So before saving, check if the URL in the address bar is same as given above. Otherwise, try clicking the above link and then if the problem persists, notify us your OS & Browser.
2) There is a setting in User CP called Auto Remove CLOSED/SECRET groups. If all your groups are CLOSED and you have this setting enabled, this can result in your problem.
3) Some hosting providers limit the maximum file upload size. If your groups file is above that limit, it can lead to no groups. You can check upload file maximum size from phpinfo in your cPanel.
Please try uploading your groups HTML file on our online demo (http://sarirsoftwares.com/facebook-multi-pagegroup-poster-demo/).
This way you can check if the problem is with the script or your installation. (Note that online demo will only show first five groups).