Ultimate facebook fatal error

Hello,

I am trying to activate ultimate face book on buddypress/wp multisite but is receiving the following error message

Fatal error: Uncaught exception ‘Exception’ with message ‘Facebook needs the CURL PHP extension.’ in wwwwpwp-contentpluginswpmu-dev-facebooklibexternalbase_facebook.php:19 Stack trace: #0 wwwwpwp-contentpluginswpmu-dev-facebooklibexternalfacebook.php(18): require_once() #1 wwwwpwp-contentpluginswpmu-dev-facebookwpmu-dev-facebook.php(102): require_once(www…’:wink: #2 wwwwpwp-adminplugins.php(146): include(‘H:moweswpwww…’:wink: #3 wwwwpwp-adminplugins.php(148): plugin_sandbox_scrape(‘wpmu-dev-facebo…’:wink: #4 {main} thrown in wwwwpwp-contentpluginswpmu-dev-facebooklibexternalbase_facebook.php on line 19