The sliding door mechanism that you use to open, close and lock the door does not work anymore. There is a piece at the bottom - a square - that sticks out when the door is locked, but it does not go back in anymore when you open the door because it is no longer attached to the metal piece that it should be.
Tom from SWISCO responded:
June 30, 2017
You may be able to use our 82-002 sliding door handle set. Just to be a 100% certain, we recommend for you to double check your hook position. Get back to us and let us know how you make out.