Fatal error: Uncaught Error: Class 'koolreport\core\DataSource' not found in C:\laragon\www\vila\vendor\koolreport\core\src\datasources\MySQLDataSource.php:40 Stack trace: #0 {main} thrown in C:\laragon\www\vila\vendor\koolreport\core\src\datasources\MySQLDataSource.php on line 40