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\eventdescription.php:9
Stack trace:
#0 {main}
thrown in D:\ktt\ttepla.com\public_html\bitrix\modules\calendar\lib\sync\util\eventdescription.php on line 9