I've tried to install this plugin/widget, but it just kills my site dead, with the "SqlException: Invalid object name 'FacebookPixelConfiguration'." error.
Going to start page of the sites creates some other exotic messages with widgets and stuff, but it's still the same SQL Exception causing this.
Anyone else has the same problem? I have to remove it manually and restart everything so I can use the site again... And wait until the session dies out. Weird.