Fatal error: Uncaught exception 'Facebook\FacebookSDKException' with message 'You must provide or set a default application id.' in /home/meltmy/public_html/facebook/FacebookSession.php:320 Stack trace: #0 /home/meltmy/public_html/facebook/FacebookRedirectLoginHelper.php(75): Facebook\FacebookSession::_getTargetAppId(NULL) #1 /home/meltmy/public_html/fbconfig.php(38): Facebook\FacebookRedirectLoginHelper->__construct('http:///fbconfi...') #2 {main} thrown in /home/meltmy/public_html/facebook/FacebookSession.php on line 320