Fatal error: Uncaught Error: Class "Bitrix\Im\V2\Chat" not found in D:\ktt\ttepla.com\public_html\bitrix\modules\im\lib\V2\Chat\PrivateChat.php:28 Stack trace: #0 {main} thrown in D:\ktt\ttepla.com\public_html\bitrix\modules\im\lib\V2\Chat\PrivateChat.php on line 28