That is very strange. I almost never get kicked out of akroma. Try it again and see what happens.
Akroma tends to act up a lot, and sometimes people just get kicked out by the server because it's weird. It might have something to do with your firewall too, or someone elses.
Maybe your IP has been banned, or maybe they just don't want you in there cause you may have not followed there rules. I don't know, but if you cant get in to the session the sad truth is that there is a reason!!