Thank you #TryNinja... I did not notice the other threads on this topic. I just think this section is a better fit for such a question.. because Preev.com is almost part of Bitcoin now and a lot of the early developers might know the developer behind this application and they might not frequent the other threads on this forum.
Looking at the other responses it might be that the traffic limit restriction for the hosting of this site has been reached, so it will be interesting to see how this would be resolved.
They should have a donation link on the site to cover the hosting costs for a package with a higher limit to prevent this in future?