Temporary Error

PDO Connection Error: SQLSTATE[HY000] [2003] Can't connect to MySQL server on 'mysql' (113)

#0 /home/wwwroot/worldfootballgolf/library/Doctrine/Connection/Mysql.php(101): Doctrine_Connection->connect()
#1 /home/wwwroot/worldfootballgolf/library/Doctrine/Connection.php(1037): Doctrine_Connection_Mysql->connect()
#2 /home/wwwroot/worldfootballgolf/library/Doctrine/Connection/Mysql.php(126): Doctrine_Connection->exec('SET NAMES 'utf8...')
#3 /home/wwwroot/worldfootballgolf/library/ZFDoctrine/Application/Resource/Doctrine.php(248): Doctrine_Connection_Mysql->setCharset('utf8')
#4 /home/wwwroot/worldfootballgolf/library/ZFDoctrine/Application/Resource/Doctrine.php(338): ZFDoctrine_Application_Resource_Doctrine->_initConnections()
#5 /home/wwwroot/worldfootballgolf/library/Zend/Application/Bootstrap/BootstrapAbstract.php(683): ZFDoctrine_Application_Resource_Doctrine->init()
#6 /home/wwwroot/worldfootballgolf/library/Zend/Application/Bootstrap/BootstrapAbstract.php(626): Zend_Application_Bootstrap_BootstrapAbstract->_executeResource('doctrine')
#7 /home/wwwroot/worldfootballgolf/library/Zend/Application/Bootstrap/BootstrapAbstract.php(586): Zend_Application_Bootstrap_BootstrapAbstract->_bootstrap(NULL)
#8 /home/wwwroot/worldfootballgolf/library/Zend/Application.php(355): Zend_Application_Bootstrap_BootstrapAbstract->bootstrap(NULL)
#9 /home/wwwroot/worldfootballgolf/public/index.php(32): Zend_Application->bootstrap()
#10 {main}