To further clarify and expand on what's going on, Cartoon Network attempted to shut down the old, current servers for the website but had no luck at the moment. The servers for the Ben 10 Club are from a third-party provider. Just in case Cartoon Network does shut down the current servers though, @admin purchased additional servers on his own as a precaution and back-up.
@Omni-Triforcer Apparently, the way that the website was supposed to work with the Premium service was that the episodes of the Ben 10 reboot are supposed to be free while episodes of the previous Ben 10 shows would be available if you sign up for Premium. I believe that's right.