First, congratulations for your very useful plugin.
I have a little problem. The FB has been published on my personal page instead of my activity page. To fix it, I have removed it from my personal page. I have also configured the plugin to publish on the activity page. Now the problem is that I can't publish the post on the activity page.
The link "link on Facebook" links to an unknown page. And when I check "Remove existing Facebook link", it does nothing.
I have tried "Update existing Facebook link" : nothing happened.
I am unable to publish the link to the activity page.
Can you help me ?