Notification emails for new orders won’t go

Hey everyone. Hope you’re all well.

I’m facing an ugly problem with one of my websites. it’s an e-commerce website and i use the plugin woocoommerce to manage everything.
The issue is that when a new order is made by a customer, the customer receives the e-mail notification for the order he just placed, but the website owner does not.
I have checked in Woocommerce > Settings > E-mail all notifications are activated.
I also changed the e-mails i was using for testing suspecting that the domain name (from yahoo.fr to gmail.com) could be the problem, nothing at that level.
I also implemented a number of solutions proposed on the web, but nothing worked. I have no other idea about that.
I would be infinitely grateful is someone could help.

Thanks in advance !

The page I need help with: [log in to see the link]