weird issue

does anyone have any idea why i might be getting this issue when logging into a client?

when logging into the client I get the message "You can't do this." so I traced it to this line in the source:

Code:

                if (client.OnLogin.Key > 100000000 || client.OnLogin.Key < 1000000)
                {
                    using (var rec = new ServerSockets.RecycledPacket())
                    {
                        var stream = rec.GetStream();
                        string Messaj = "You can't do this.";
                        client.Send(new MsgMessage(Messaj, "ALLUSERS", MsgMessage.MsgColor.red, MsgMessage.ChatMode.Dialog).GetArray(stream));

                    }
                    return;
                }

also when loading server I get "cant load guard information"

which I assume its talking about this guardshield.dll that's used for login process of the client?

i think its something with the server loader as I never used to get "cant load guard information"

could a new year have something to do with it?