Problem with database!

PDOException: SQLSTATE[HY000] [1045] Access denied for user '906648'@'37.48.70.196' (using password: YES) in /profiles/l/li/lis/lisek1122/wp.esportowapolska.pl/class/database.php:8
Stack trace:
#0 /profiles/l/li/lis/lisek1122/wp.esportowapolska.pl/class/database.php(8): PDO->__construct('mysql:host=sql....', '906648', 'znqCZtE0Rwfgb9R', Array)
#1 /profiles/l/li/lis/lisek1122/wp.esportowapolska.pl/index.php(7): DataBase->__construct()
#2 {main}