A problem occurred during installation

[HansOffice]

Display after installing the configuration file,I want to know exactly where the configuration went wrong Fatal error: Uncaught PDOException: SQLSTATE[HY000] [1130] Host '42.193.122.45' is not allowed to connect to this MySQL server in C:\wwwroot\www.cyumc.ltd\skin\resources\server\libraries.php:19 Stack trace: #0 C:\wwwroot\www.cyumc.ltd\skin\resources\server\libraries.php(19): PDO->__construct('mysql:host=www....', 'skin', 'hans1101') #1 C:\wwwroot\www.cyumc.ltd\skin\index.php(3): require_once('C:\wwwroot\www....') #2 {main} thrown in C:\wwwroot\www.cyumc.ltd\skin\resources\server\libraries.php on line 19