If you are receiving this issue, please ensure you test your website first on www.jetpack.com/debug and if it shows you specifically the issue error of RPC - Issues with reading this file. You will need to do the following:
Access Control Panel:
- Click on File Manager > Public_HTML (Settings, to enable hidden files).
- Click on File (.HTACESS) and click edit (Within the WordPress Tags, place the following code:
allow from all
This will then allow you to connect up from within JetPack to Facebook (Enabling the connection for the plugin Publicize).
We recommend then going a check, creating a test post, and posting it on your site and then checking Facebook to ensure the post has pulled through onto your Facebook Business Page.
If this fix does not work with you, please come back to us and raise this again.