I'm glad we had a chance to connect over the support line yesterday and get to the root of your issue with your shop not resolving correctly, and most importantly get it back up and displaying as expected.
The recent DDoS attack on our ISP resulted in many components of AuctivaCommerce going offline for a short period, and as a result, some custom domains were not redirecting correctly.
Your case helped us discover that some of our users having services like GoDaddy managing Custom domains, may have had them reconfigured unbeknownst to them.
The result in such instances was GoDaddy redirecting the domain. In these cases users may need to log back into the GoDaddy account of record and locate the DNS control section, and set the A HOST record to point to 18.104.22.168 and save those settings.
Thank you for your patience and understanding as we worked through your issue.