Fatal error: Uncaught Error: Undefined constant "App\Core\DB_FILE" in /www/wwwroot/rasadweb.ir/app/Core/Database.php:67 Stack trace: #0 /www/wwwroot/rasadweb.ir/app/Core/Database.php(18): App\Core\Database::openPdo() #1 /www/wwwroot/rasadweb.ir/public/news.php(22): App\Core\Database->__construct() #2 {main} thrown in /www/wwwroot/rasadweb.ir/app/Core/Database.php on line 67