How do I add Facebook to my website?
First, you will need to create a Facebook page for your community. Please note that groups and profiles are different Facebook products, you need to setup a Facebook page, not a group or profile.
Once you have created a Facebook page, go to your Admin Panel > Menu > Content > Panel Layouts.
Next, find the Facebook panel and click 'Add.' You will then be asked to enter your Facebook page username, just enter it in the text box and press save.