Getting Disconnected At Log In With A Specific Character

Hi everybody, this problem is new to me and I can't figure what is happening... Just now I joined a random DF and got into Stockade when suddendly I got disconnected from the server. At first I thought the server was down, but to be sure I tried to rejoin and as soon I entered with the same character (Xiamu, lock lvl 22) I got disconnected again... I tried with the other two chars I have on this realm and I logged in just fine. So it seems I' can't log in only with Xiamu. Has someone ever got this problem as well?