Fatal error: Uncaught Error: Interface "Bitrix\Calendar\Core\Queue\Interfaces\Processor" not found in D:\ktt\ttepla.com\public_html\bitrix\modules\calendar\lib\core\queue\processor\eventattendeesupdate.php:18 Stack trace: #0 {main} thrown in D:\ktt\ttepla.com\public_html\bitrix\modules\calendar\lib\core\queue\processor\eventattendeesupdate.php on line 18