Hi,
Go in the menu System>Emails of your backend and verify that the email is still enabled.
If that's the case, then the order admin email notification is sent to the owner by HikaShop through your email server. If the shop owner doesn't receive it, it would mean that the email server could send it to the receiver email server. That's normally something to investigate with the hosting company as it might require to log at the logs of the email server.
A simple solution would be to just add the email address of the shop owner in the order creation notification/order status notification emails' BCC field so that the shop owner would get a copy of the emails sent to the customer.