im stuck badly....

im on the mission travel to Ceres base and after i defeated some storm troopers  i got confused and pushed the object off the "cliif" the edge to be more accurate and now not only i cant get it up but i have turned on autosave and cant get back to my most recent i have died multiple times trying to reset it but it didnt worked i also have fast traveled threw some meditation points and still it dosent reset