When a class is trying to get on an error comes up and says to contact the administrator is this new or does it happen all the time?

You may experience temporary down times. We are addressing this issue, and working to resolve it. In the meantime, if you hit refresh or try again in a minute or two, the site is usually back up and running.

I have been trying this several times a day and only one or two kids can get on the site at the same time. this is a fantastic site! I just wish I could use it with a class. I try refreshing closing and opening back up but nothig works

We're having the same problem at my school. We try to be patient and try again. The kids are so excited about this site. I have the kids who don't get to do it at home go on the site during computer lab time. I hesitate to complain about something so wonderful that is free but I'll be happy (and so will my students) when this quirk is resolved. Thanks again for such a fun, motivating and effective website.