That's all i get whenever i try to log in... i didn't try to hack or anything... so thet leaves me with one question.... What the ****!? >:(

DUDE i got the same thing so i created a new 1 I wondered what i did to get it blocked sine i didnt do anything bad maybe since i played Flyff it got me blocked

Your account isn't blocked. It is a bug. When it happens to me I go back to the server list and log back in right away and I get into the game. Sometimes when you get DC you will be still logged in and you have to wait a couple minutes to get in. So your characters and everything are still there.

It says that if you put in an incorrect user name or password. Just make sure you type it in right. That's all I had to do.