SQLSTATE[HY000] [2002] php_network_getaddresses: getaddrinfo failed: Temporary failure in name resolution

#0 /apps/esute/vendor/zendframework/zendframework1/library/Zend/Db/Adapter/Pdo/Mysql.php(111): Zend_Db_Adapter_Pdo_Abstract->_connect()
#1 /apps/esute/vendor/zendframework/zendframework1/library/Zend/Db/Adapter/Abstract.php(460): Zend_Db_Adapter_Pdo_Mysql->_connect()
#2 /apps/esute/vendor/zendframework/zendframework1/library/Zend/Db/Adapter/Pdo/Abstract.php(238): Zend_Db_Adapter_Abstract->query('set names utf8', Array)
#3 /apps/esute/Application/Model/Db/Connector.php(69): Zend_Db_Adapter_Pdo_Abstract->query('set names utf8')
#4 /apps/esute/Application/Model/Db/Table/Abstract.php(39): Application_Model_Db_Connector->getMaster()
#5 /apps/esute/Application/System.php(395): Application_Model_Db_Table_Abstract->__construct()
#6 /apps/esute/Application/Controller/Public/Abstract.php(76): Application_System::getArea()
#7 /apps/esute/Application/Controller/Abstract.php(40): Application_Controller_Public_Abstract->_preDispatch()
#8 /apps/esute/vendor/zendframework/zendframework1/library/Zend/Controller/Action.php(502): Application_Controller_Abstract->preDispatch()
#9 /apps/esute/vendor/zendframework/zendframework1/library/Zend/Controller/Dispatcher/Standard.php(308): Zend_Controller_Action->dispatch('castAction')
#10 /apps/esute/vendor/zendframework/zendframework1/library/Zend/Controller/Front.php(954): Zend_Controller_Dispatcher_Standard->dispatch(Object(Application_Controller_Request_Http), Object(Zend_Controller_Response_Http))
#11 /apps/esute/Interface/Public.php(33): Zend_Controller_Front->dispatch()
#12 {main}