Fatal error: Uncaught mysqli_sql_exception: Access denied for user 'root'@'localhost' (using password: NO) in /opt/bitnami/sizechart/app/config/database.php:36 Stack trace: #0 /opt/bitnami/sizechart/app/config/database.php(36): mysqli->__construct() #1 /opt/bitnami/sizechart/app/config/database.php(63): Database->__construct() #2 /opt/bitnami/sizechart/app/config/SizeDatabase.php(20): Database::getInstance() #3 /opt/bitnami/sizechart/app/models/SizeModel.php(9): SizeDatabase->getConnection() #4 /opt/bitnami/sizechart/app/controllers/ConverterController.php(9): SizeModel->__construct() #5 /opt/bitnami/sizechart/index.php(178): ConverterController->__construct() #6 /opt/bitnami/sizechart/app/config/router.php(140): {closure:/opt/bitnami/sizechart/index.php:176}() #7 /opt/bitnami/sizechart/index.php(474): Router->dispatch() #8 {main} thrown in /opt/bitnami/sizechart/app/config/database.php on line 36