Warning: include_once(mysql_db.php): failed to open stream: No such file or directory in /home/cta/public_html/config/config.php on line 2

Warning: include_once(): Failed opening 'mysql_db.php' for inclusion (include_path='.:/opt/cpanel/ea-php55/root/usr/share/pear') in /home/cta/public_html/config/config.php on line 2

Fatal error: Uncaught exception 'Facebook\FacebookSDKException' with message 'You must provide or set a default application id.' in /home/cta/public_html/fbLogin/src/Facebook/FacebookSession.php:320 Stack trace: #0 /home/cta/public_html/fbLogin/src/Facebook/FacebookRedirectLoginHelper.php(75): Facebook\FacebookSession::_getTargetAppId(NULL) #1 /home/cta/public_html/fbLogin/fbconfig.php(22): Facebook\FacebookRedirectLoginHelper->__construct('http://www.chea...') #2 {main} thrown in /home/cta/public_html/fbLogin/src/Facebook/FacebookSession.php on line 320