OVH has closed their cloud storage hubiC for new registrations over two years ago. For more information about this follow the article published vom OVH: The hubiC service is now closed to new subscriptions
So I have decided to close also the service StackHub on the end of June 2020. Since it was providing you OpenStack compatible login to the cloud storage you can still access to your data. I had never access to any of your data, because it was only a proxy for the login data.
Thanks for using this service.