Doorhandle not working properly
Thanks for reaching out! I'm sorry to say that that we would not be to supply you with any replacement parts compatible with your door. The mortise lock you have has a faceplate that extends the entire length of the door and none of the handle sets we sell are compatible with this hardware, unfortunately.
Your handle set kind of look similar to an Andersen brand hinged patio door but we cannot confirm that with certainty. Check to see if there are any labels or names stamped on the hardware (possibly on the mortise lock or the inside of the handle) or the lower corner of the glass lite stating the brand name of the door.
I hope this helps!
Our sincerest apologies that we could not be of help with this repair but please feel free to reach out with any future hardware repair projects you might have.