The server is busy getting laid. Leave it be. It's like having a Do Not Disturb sign on the door. On a serious note, Error 500 usually means an "internal server error", or often that a script on the server has gone belly-up. Maybe Fugly was tinkering at the time? I haven't seen any myself.
I have been getting them. Every other page I try to go to is plain white and it times out. I thought someone was fucking with me, serving me WHITE pages because of my coments but I guess not. White devil ass pages.