Fatal error: Uncaught exception 'Doctrine_Connection_Exception' with message 'PDO Connection Error: SQLSTATE[HY000] [2002] Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (111)' in /home/sina/html/application/plugins/doctrine/lib/Doctrine/Connection.php:474 Stack trace: #0 /home/sina/html/application/plugins/doctrine/lib/Doctrine/Connection/Mysql.php(101): Doctrine_Connection->connect() #1 /home/sina/html/application/plugins/doctrine/lib/Doctrine/Connection.php(1037): Doctrine_Connection_Mysql->connect() #2 /home/sina/html/application/plugins/doctrine/lib/Doctrine/Connection/Mysql.php(127): Doctrine_Connection->exec('SET NAMES 'utf8...') #3 /home/sina/html/application/plugins/doctrine_pi.php(23): Doctrine_Connection_Mysql->setCharset('utf8') #4 /home/sina/html/system/libraries/Loader.php(466): include_once('/home/sina/html...') #5 /home/sina/html/system/libraries/Loader.php(968): CI_Loader->plugin(Array) #6 /home/sina/html/system/libraries/Controller.php(83): CI_Loader->_ci_autoloader() #7 / in /home/sina/html/application/plugins/doctrine/lib/Doctrine/Connection.php on line 474