Fatal error: Uncaught Error: Class "Bitrix\Main\IO\File" not found in D:\ktt\ttepla.com\public_html\bitrix\modules\seo\lib\sitemapfile.php:20 Stack trace: #0 {main} thrown in D:\ktt\ttepla.com\public_html\bitrix\modules\seo\lib\sitemapfile.php on line 20