Error : 70900370 : Unable to Query database for resource usage

Question: When trying to activate HC License the panel throws this error Error : 70900370 : Unable to Query database for resource usage ?

Answer:
This error appears if HC machine is unable to connect to the HC Database Server. A successful connection can be made by opening " RegisteredServer.exe " in HC installation folder path X:\Program Files\HostingController\Applications, and clicking on the Register Button.