Fatal error: Uncaught Error: Class "Bitrix\Mail\Registrar\Registrar" not found in D:\ktt\ttepla.com\public_html\bitrix\modules\mail\lib\registrar\regru.php:6 Stack trace: #0 {main} thrown in D:\ktt\ttepla.com\public_html\bitrix\modules\mail\lib\registrar\regru.php on line 6