If you cannot access your website using your own domain name, please check if you can access it using the temporary subdomain name (xxxx.shop033.com) we have provided to your shop account. If you can can access it using the temporary subdomain, there is a possibility that there is an issue with the domain names registration status.
To check your domain registration status, please go to who.is and perform a whois look up of your domain name. In the WHOIS lookup result, look for the your domain name status. If it says 'registrarhold' or 'expired' this means your domain registration has already expired or being held up by your current registrar. You will need to contact your domain registrar to get this resolved.