Problem with database!

PDOException: SQLSTATE[HY000] [2002] Connection refused in /home_hdd/ariciiro/public_html/skins.aricii.ro/class/database.php:8
Stack trace:
#0 /home_hdd/ariciiro/public_html/skins.aricii.ro/class/database.php(8): PDO->__construct('mysql:host=188....', 'u191_r0yfTN8DZG', Object(SensitiveParameterValue), Array)
#1 /home_hdd/ariciiro/public_html/skins.aricii.ro/index.php(7): DataBase->__construct()
#2 {main}