Log in to your Facebook Profile account.
Choose Options in upper right corner (gear icon) and select the Settings button.
Here you can manage several different parameters related to your Facebook privacy and privilege settings
In the navigation bar which is offered on the left side of the settings menu, select the Followers tab.
Under option Who can follow me, from the drop-down menu, set the privilege level so Everybody can Like/Comment/Share your Facebook Profile Photo/Video/Post/Link.
If not, only your Facebook friends will be able to leave Social Media Interaction on your Photo/Video/Post/Link.
For our system to work correctly you need to have one Social Media Interaction (in this case you need to have one Facebook Like) on your Facebook Page/Photo/Post/Video so our system can work correctly.