If your web server has a maintenance page that blocks users from logging in, this will prevent users from verifying their accounts on the game servers. Since the maintenance page blocks any page from being displayed unless you are an admin, and logged in, the page will be redirected to the main page set in the maintenance script. Set an exception for the verify page unless you want to take the game offline.
No Users displayed in Stand Alone Editor
Users have to log into the system and have a character created in order to display them inside of the stand alone editor. Once this has been done, they will appear inside of the editor to allow you to modify them.