Fatal error: Uncaught Error: Class "Bitrix\Main\Update\Stepper" not found in D:\ktt\ttepla.com\public_html\bitrix\modules\calendar\lib\update\googletonewsync.php:24 Stack trace: #0 {main} thrown in D:\ktt\ttepla.com\public_html\bitrix\modules\calendar\lib\update\googletonewsync.php on line 24