Cannot connect to database !!

exception 'PDOException' with message 'SQLSTATE[28000] [1045] Access denied for user 'stlucia2'@'localhost' (using password: YES)' in /home1/stlucia2/public_html/ajaxsearch/php/Connection.simple.php:22 Stack trace: #0 /home1/stlucia2/public_html/ajaxsearch/php/Connection.simple.php(22): PDO->__construct('mysql:host=loca...', 'stlucia2', 'uAf-X4e-4My-xNd') #1 /home1/stlucia2/public_html/ajaxsearch/index.php(10): dbConnect() #2 {main}