Problem with database!

PDOException: SQLSTATE[HY000] [1045] Access denied for user '412145_mysql57'@'kocicka.stable.cz' (using password: YES) in /home/users/mayority6fsk/mayority.6f.sk/web/class/database.php:8
Stack trace:
#0 /home/users/mayority6fsk/mayority.6f.sk/web/class/database.php(8): PDO->__construct()
#1 /home/users/mayority6fsk/mayority.6f.sk/web/index.php(7): DataBase->__construct()
#2 {main}