Fatal error: Uncaught mysqli_sql_exception: No connection could be made because the target machine actively refused it in C:\xampp\htdocs\hrmanagement\45 hr passchange\passchange.php:21 Stack trace: #0 C:\xampp\htdocs\hrmanagement\45 hr passchange\passchange.php(21): mysqli->__construct('localhost', 'root', Object(SensitiveParameterValue), 'adminhr') #1 {main} thrown in C:\xampp\htdocs\hrmanagement\45 hr passchange\passchange.php on line 21