Edited - The website is back up and running!!!
I noticed that Stamp and Create website wasn't working with a message that said the "Server is not responding". I tried to log into the server and it also said it wasn't responding. I called the server provider and apparently they are having a temporary issue.
They said their local power company needed them to shut down all power in their building (including their back up generators) for the safety of the repairmen working in their immediate area.
They said it should be up again around 2am EST. I'm sorry for any problems if you were not able to access the store this evening. Hopefully it will be back up soon.