Fatal error: Uncaught Error: Interface "Bitrix\Sender\Posting\ThreadStrategy\IThreadStrategy" not found in D:\ktt\ttepla.com\public_html\bitrix\modules\sender\lib\posting\threadstrategy\abstractthreadstrategy.php:14 Stack trace: #0 {main} thrown in D:\ktt\ttepla.com\public_html\bitrix\modules\sender\lib\posting\threadstrategy\abstractthreadstrategy.php on line 14