I have sent both of you an email with "Shopify Forum Support" as the subject. Please reply with the requested information so I can continue to review your issue.
I changed the primary domain in to my-perfect-fashion.myshopify.com and it works now. So there is an issue with domain I am paying and most probably it is not charged and therefore is not working any more. But why it is not charged? it says that it was paid on 11th of February. How to pay otherwise?
I'm afraid I am unable to provide that answer on a public forum as we want to ensure the safety of your account. I will be following up via email with you shortly once I have an update available.