NEED HELP BAD

loaded my jedi survivor up after a day or two of not playing, i was in the middle of a mission, and it loaded me in a cave with a locked door and thats it. the door is supposed to be opened from the other side i believe, but i have no exit to the cave, theres just a cliffside that drops off the map and a large door that is locked. i have tried reloading my save point, ive tried jumping off the cliff to restart the mission but nothing works. i really dont want to restart the game as i have a good amount of hours into it and i dont have much time to play because of work, so getting back to the current point im at will take me a very long time.