MySQL Database Connection Issue

Error
Warning: mysql_connect(): Access denied for user: ‘user1_name1@localhost’ (Using password: YES) /home/public_html/catalog/includes/functions/database.php on line 19
Unable to connect to database server

Configuration File
Edit Configuration File
define(‘DB_NAME’, ‘radius’);
define(‘DB_USER’, ‘radius_02’);
define(‘DB_PASSWORD’, ‘5Jmfde%53L’);
define(‘DB_HOST’, ‘localhost’);

Update CPanel Username
define(‘DB_NAME’, ‘radius’);

Replace Current DB_USER & DB_PASSWORD
define(‘DB_USER’, ‘radius_03’);
define(‘DB_PASSWORD’, ‘nvGHdCC0dCMz’);