Warning: Undefined variable $DB in D:\ktt\ttepla.com\public_html\bitrix\modules\blog\install\events\del_events.php on line 3

Fatal error: Uncaught Error: Call to a member function Query() on null in D:\ktt\ttepla.com\public_html\bitrix\modules\blog\install\events\del_events.php:3 Stack trace: #0 {main} thrown in D:\ktt\ttepla.com\public_html\bitrix\modules\blog\install\events\del_events.php on line 3