It's a problem with mibbit, if you use an irc client, you can get in.
I'll quote Slaix from an earlier thread.
QUOTE (slaix223 @ Apr 28 2010, 04:39 PM)
Well, chat's up and running for me. After checking, it looks like it's Mibbit that's causing the problems. If you guys can find an IRC Client and connect to the server that way, it should work.
Try HydraIRC or kvIRC for now. After getting and installing it, connect to the server by typing: /server us.irc.j3di.org
To connect to the channel, type /join #RRR
Hopefully that should work... Although I don't know when Mibbit'll be back up.