Help, I Can't Get Through ... (Star Wars: Knights of the Old Republic 2 - The Sith Lords)

When I come to the Royal Palace and kill the queen and after talking I find myself on Dxun where my team will say that everything needs to be discussed on the ship ... opens ... What to do ?? maybe I did something wrong ... it seemed like everything was going fine according to the plot, but because of what the door doesn’t open I can’t figure it out ... Help please ...