Error bootstraping the application

SQLSTATE[HY000] [2002] No such file or directory#0 /home/cielanet/library/Zend/Db/Adapter/Pdo/Mysql.php(109): Zend_Db_Adapter_Pdo_Abstract->_connect()
#1 /home/cielanet/library/Zend/Db/Adapter/Abstract.php(459): Zend_Db_Adapter_Pdo_Mysql->_connect()
#2 /home/cielanet/library/Zend/Db/Adapter/Pdo/Abstract.php(238): Zend_Db_Adapter_Abstract->query('DESCRIBE `I18n`', Array)
#3 /home/cielanet/library/Zend/Db/Adapter/Pdo/Mysql.php(169): Zend_Db_Adapter_Pdo_Abstract->query('DESCRIBE `I18n`')
#4 /home/cielanet/library/Zend/Db/Table/Abstract.php(836): Zend_Db_Adapter_Pdo_Mysql->describeTable('I18n', NULL)
#5 /home/cielanet/library/Zend/Db/Table/Abstract.php(875): Zend_Db_Table_Abstract->_setupMetadata()
#6 /home/cielanet/library/Zend/Db/Table/Abstract.php(983): Zend_Db_Table_Abstract->_setupPrimaryKey()
#7 /home/cielanet/library/Zend/Db/Table/Select.php(100): Zend_Db_Table_Abstract->info()
#8 /home/cielanet/library/Zend/Db/Table/Select.php(78): Zend_Db_Table_Select->setTable(Object(Admin_Model_I18n))
#9 /home/cielanet/library/Zend/Db/Table/Abstract.php(1019): Zend_Db_Table_Select->__construct(Object(Admin_Model_I18n))
#10 /home/cielanet/library/Dnez/Db/Table.php(80): Zend_Db_Table_Abstract->select()
#11 /home/cielanet/application/resources/classes/I18n.php(37): Dnez_Db_Table::getBy('locale', Object(Zend_Locale))
#12 /home/cielanet/application/resources/classes/I18n.php(48): I18n::getModel()
#13 /home/cielanet/application/modules/default/plugins/Head.php(129): I18n::getId()
#14 /home/cielanet/library/Zend/Controller/Plugin/Broker.php(309): Default_Plugin_Head->preDispatch(Object(Zend_Controller_Request_Http))
#15 /home/cielanet/library/Zend/Controller/Front.php(941): Zend_Controller_Plugin_Broker->preDispatch(Object(Zend_Controller_Request_Http))
#16 /home/cielanet/library/Zend/Application/Bootstrap/Bootstrap.php(97): Zend_Controller_Front->dispatch()
#17 /home/cielanet/library/Zend/Application.php(366): Zend_Application_Bootstrap_Bootstrap->run()
#18 /home/cielanet/application/bootstrap.php(21): Zend_Application->run()
#19 /home/cielanet/public_html/index.php(6): require_once('/home/cielanet/...')
#20 {main}

#0 /home/cielanet/library/Zend/Controller/Front.php(941): Zend_Controller_Plugin_Broker->preDispatch(Object(Zend_Controller_Request_Http))
#1 /home/cielanet/library/Zend/Application/Bootstrap/Bootstrap.php(97): Zend_Controller_Front->dispatch()
#2 /home/cielanet/library/Zend/Application.php(366): Zend_Application_Bootstrap_Bootstrap->run()
#3 /home/cielanet/application/bootstrap.php(21): Zend_Application->run()
#4 /home/cielanet/public_html/index.php(6): require_once('/home/cielanet/...')
#5 {main}