I recently transferred my phpbb3 forum to a new server. I have transfer all required file and updated the database successfully. Now I have a new database and user name. I have updated the database and username in my config.php file as below
$dbname = 'XXXX_forum_db';
$dbuser = 'evlsixsb_admin';
$dbpasswd = 'XXXXXXXXXX';
But still I get below Error.
SQL ERROR [ mysql4 ]
access denied for user 'evlsicom_admin'@'localhost' (using password: YES) 
An sql error occurred while fetching this page. Please contact an administrator if this problem persists.
evlsicom_admin was admin name on my old server. It is still looking with old username. New user name is "evlsixsb_admin" which I have updated in config.php. Here is my forum link.