Fatal error: Uncaught Error: Class "Bitrix\Main\Loader" not found in D:\ktt\ttepla.com\public_html\bitrix\modules\catalog\admin\templates\product_edit.php:27 Stack trace: #0 {main} thrown in D:\ktt\ttepla.com\public_html\bitrix\modules\catalog\admin\templates\product_edit.php on line 27