Fatal error: Uncaught mysqli_sql_exception: No connection could be made because the target machine actively refused it in C:\xampp\htdocs\validate.php:18 Stack trace: #0 C:\xampp\htdocs\validate.php(18): mysqli->__construct('127.0.0.1', 'root', Object(SensitiveParameterValue), 'licencia_db') #1 {main} thrown in C:\xampp\htdocs\validate.php on line 18