Hi Juan,
There is no setting for notification. It works automatically when a new order placed. Please make sure you have new orders to get the notification.
If you don’t get the notification for new orders then there is something wrong on your side. It can be a plugin confliction issue.
Please provide your wp-admin (URL, Username & Password) access using our Envato Market (codecanyon) profile contact form https://codecanyon.net/user/themelooks#contact (screenshot as reference http://prntscr.com/gkmr2r ) including this support topic link as a reference to review the issue to fix.
Best regards,
ThemeLooks Support Team