Install and configure maria DB server

Warning : mysqli_real_connect(): (HY000/1045): Access denied for user ‘kodekloud_pop’@‘stapp03.linuxinstalldb_db_net’ (using password: YES) in /var/www/html/wp-includes/wp-db.php on line 1633

Access denied for user 'kodekloud_pop'@'stapp03.linuxinstalldb_db_net' (using password: YES)

I have installed MariaDB and able to browse the Wordpress site , but still my tasks shows failed.

May know what mistake ?

Hope my DB restoration was not successful. can this task re-assigned ?