Unfortunately, it's a very old buggy system and can only support a limited number of concurrent users. ben may be able to carry out a reset to get it working again, but a quick google search should find you other versions which may work better.
That happened to me last night when I was looking for info on that clutch pipe. I'm not very "tech savvy" so thought it was just me doing something wrongly - again! When I tried again about 1/2 an hour later it worked fine. Now I know why. I believe there is the facility to enter the vehicle's VIN to refine the search? I can't find where you do this - where should I look?