I've never run a city, but I imagine it's a lot like running a company online. Once the city is built, you can't really shut down vital services without adversely affecting users. Construction and changes must take place without affecting the current services or you get a lot of angry constituents (and probably lose your job!)
Recently, GoHigherIS completed a server move for it's services. While the vast majority of people did not experience any issues, some have had difficulty accessing tickets, downloads and documentation. For this we apologize; we are working hard to improve not only our products but our systems as well to better serve you, our customers.
Thank you for your patience for the past couple of weeks as we have fine tuned our services. We hope you find the new home for GoHigherIS much faster, reliable and easier to use.