No Longer Receiving New Order Notification

About 3 days ago I stopped getting the notification email when a new order is placed on the website.

I have not changed any settings for this email, and have checked with my hosting company, and they say there is no evidence of the emails from their end.

Could you tell me how to fix this problem?

Thanks

Are you receiving the other emails ? Like order status notification, or joomla user account created ?

Have you edited this email ?