Fatal error: Uncaught PDOException: SQLSTATE[HY000] [1045] Access denied for user 'mysql_frou-frou'@'localhost' (using password: YES) in /var/www/vhosts/frou-frou.com/1/old.frou-frou.com/vendor/magento/zendframework1/library/Zend/Db/Adapter/Pdo/Abstract.php:128 Stack trace: #0 /var/www/vhosts/frou-frou.com/1/old.frou-frou.com/vendor/magento/zendframework1/library/Zend/Db/Adapter/Pdo/Abstract.php(128): PDO->__construct('mysql:host=loca...', 'mysql_frou-frou', '5fKxv_6l0clHKug...', Array) #1 /var/www/vhosts/frou-frou.com/1/old.frou-frou.com/vendor/magento/zendframework1/library/Zend/Db/Adapter/Pdo/Mysql.php(111): Zend_Db_Adapter_Pdo_Abstract->_connect() #2 /var/www/vhosts/frou-frou.com/1/old.frou-frou.com/vendor/magento/framework/DB/Adapter/Pdo/Mysql.php(406): Zend_Db_Adapter_Pdo_Mysql->_connect() #3 /var/www/vhosts/frou-frou.com/1/old.frou-frou.com/vendor/magento/zendframework1/library/Zend/Db/Adapter/Abstract.php(460): Magento\Framework\DB\Adapter\Pdo\Mysql->_connect() #4 /var/www/vhosts/frou-frou.com/1/old.frou-frou.com/ in /var/www/vhosts/frou-frou.com/1/old.frou-frou.com/vendor/magento/zendframework1/library/Zend/Db/Adapter/Pdo/Abstract.php on line 144