electrical rear flap defective – spring jumped out

Hello motor friends, With our beloved Volvo XC70 Kombi 2.4 D5 AWD 215 HP This year of construction 2015 the boot can only open with very strong will. The rear flaps dampers were no longer in fire since summer so that the rear flap always after the open is a bit bagged again. I have since always postponed the change of the dampers so that now since yesterday the trunk could not be opened without strong will by hand. At the opening he has very knattert. n the cover etc. Demonstrated and saw that the spring of the electric tailgate has jumped out and therefore the knatter comes when opening. Does any of you have any idea how to dismantle the electric tailgate? I haven’t found anything in the net so far and would not like to answer the matter unknowingly. Did anyone ever have experience with it and does anyone know what that would cost at a workshop? I once packed in pictures to illustrate the whole thing. Thank you eu ch many times for your help!