Can't even log into Runescape

I logged out and have shut down my computer since the last time I was logged in, and I got this message when I was trying to log in:

Your account has not been logged out from its last session or the server is too busy to handle your request. Please try again in a few minutes or try a different server.

I got this when I was trying to log in, not when I was trying to select a server. Didn't even get to the lobby.