An exception occured while bootstrapping the application.

No route to host
Stack Trace:
#0 /var/www/library/Zend/Db/Adapter/Abstract.php(414): Zend_Db_Adapter_Mysqli->_connect()
#1 /var/www/10804/schwarzwald-events.de/framework/application/bootstrap.php(246): Zend_Db_Adapter_Abstract->query('SELECT  id, par...')
#2 /var/www/10804/schwarzwald-events.de/htdocs/index.php(37): require('/var/www/10804/...')
#3 {main}