Oh, fuck! I'm so sorry about it. I did not know there's a player touch teleport to Downtown in the Stages scenary. My bad. Downtown is a area for the next update, you shoud not be capable to access it yet. Sorry, but if you got there, there's no way out. Please, reload a early save game, and don't interact with the scenary. I changed it now and in the next update it will be fixed.
Thank you very much for letting me know about this problem.
Have fun!