Hi,
They seem to have some issues at the moment with their servers, probably due to the fact that they are upgrading their infrastructure.
Actually, next version of HikaShop will have an improved geolocation system and will support both IPInfoDB and Geoplugin for the geolocation, so you will be able to use it even without any registration.
If you can't wait for next release in a few weeks, please use our contact form in order to request a preversion of HikaShop Business's next version with that feature added and make sure that you include the order number of your HikaShop Business in your request:
www.hikashop.com/contact-us.html