It could be that the server was down? Or maybe your java is not compatable. Also this can happen because of internet connection and your computer speed. If you keep having these problems feel free to inform me. I'll try and help you any way I cant.
Neither my wife nor myself have been able to get into towns, on any browser on either of our computers. Loads up the trainstation area just fine though, can wander around and talk to the NPC's there, but can't join any servers.
If you can't get any flash environments up it may not be the same thing, but you are not alone in the out-of-Towns feeling!
i'm updated on adobe, i was just wondering if it was something wrong on Gaia's end.
It's the update. I just updated Flash to the latest version too, and it was awful. Not only Towns but anything Flash related (games, especially my aquarium, videos, etc.) either wouldn't load or crashed constantly. I wound up uninstalling it and going back to version 10.