Fatal error: Uncaught mysqli_sql_exception: No such file or directory in /var/www/html/database/connection.php:9 Stack trace: #0 /var/www/html/database/connection.php(9): mysqli->__construct('localhost', 'root', Object(SensitiveParameterValue), 'railway', 3306) #1 /var/www/html/index.php(3): include('/var/www/html/d...') #2 {main} thrown in /var/www/html/database/connection.php on line 9