Fatal error: Uncaught Error: Interface "Bitrix\Sender\Message\iBase" not found in D:\ktt\ttepla.com\public_html\bitrix\modules\sender\lib\integration\yandex\master\messagemasteryandex.php:9 Stack trace: #0 {main} thrown in D:\ktt\ttepla.com\public_html\bitrix\modules\sender\lib\integration\yandex\master\messagemasteryandex.php on line 9