hello all, I was trying worldbox 4.0 for my tutorial but it gives a continuous error Unable to connect to mysql Error code: 0, I wanted to know if it happens only to me and how I can solve this problem, with worldbox 3.0 everything is fine, thanks

Unable to connect to mysql ...
Error code: 0
Error file: C:\WorldBox_4.0\DataBase
oot\inc\PDO-mysql.php
Error line: 3
Error data: could not find driver