Erro ao Conectar com o banco de dados!

PDOException: SQLSTATE[HY000] [1045] Access denied for user 'graci766_imob'@'localhost' (using password: YES) in /home4/graci766/public_html/sistema/conexao.php:19 Stack trace: #0 /home4/graci766/public_html/sistema/conexao.php(19): PDO->__construct('mysql:dbname=gr...', 'graci766_imob', Object(SensitiveParameterValue)) #1 /home4/graci766/public_html/cabecalho.php(2): require_once('/home4/graci766...') #2 /home4/graci766/public_html/index.php(2): require_once('/home4/graci766...') #3 {main}