Fatal error: Uncaught Error: Call to undefined function Bitrix\Calendar\Sync\Util\IncludeModuleLangFile() in D:\ktt\ttepla.com\public_html\bitrix\modules\calendar\lib\sync\util\attendeesdescription.php:9 Stack trace: #0 {main} thrown in D:\ktt\ttepla.com\public_html\bitrix\modules\calendar\lib\sync\util\attendeesdescription.php on line 9