Fatal error: Uncaught exception 'PDOException' with message 'SQLSTATE[HY000] [1049] Unknown database 'db_sales'' in C:\xampp\htdocs\jinxiPhp\final project\koolreport\src\datasources\PdoDataSource.php:109 Stack trace: #0 C:\xampp\htdocs\jinxiPhp\final project\koolreport\src\datasources\PdoDataSource.php(109): PDO->construct('mysql:host=loca...', 'root', '') #1 C:\xampp\htdocs\jinxiPhp\final project\koolreport\src\core\DataSource.php(57): koolreport\datasources\PdoDataSource->onInit() #2 C:\xampp\htdocs\jinxiPhp\final project\koolreport\src\KoolReport.php(263): koolreport\core\DataSource->construct(Array, Object(SalesByCustomer)) #3 C:\xampp\htdocs\jinxiPhp\final project\SalesByCustomer.php(25): koolreport\KoolReport->src('sales') #4 C:\xampp\htdocs\jinxiPhp\final project\koolreport\src\KoolReport.php(99): SalesByCustomer->setup() #5 C:\xampp\htdocs\jinxiPhp\final project\index.php(4): koolreport\KoolReport->__construct() #6 {main} thrown in C:\xampp\htdocs\jinxiPhp\final project\koolreport\src\datasources\PdoDataSource.php on line 109