The migration of Groupsort to a new server is now complete. It may take a few hours for the new location to be updated around the internet, but the updated address (new.groupsort.com) should work in the interim.
All accounts and data have been moved over, and everything should work pretty well exactly as before, so if you experience any problems using the new version then we would be very grateful if you could let us know in the comments below.
Sorry for any disruption that may have happened during this process. We hope that, from here, everything will run smoothly!