Or you could clean the latch mechanism, remove all of the gunk and grease that has caused it to seize, and then enjoy a working door handle again without any hassle.
With the door open, look at the latch. Clean it up thoroughly using degreaser, penetrating fluid and give a good scrub with a toothbrush or similar. Usually this solves such issues.
With the door open, look at the latch. Clean it up thoroughly using degreaser, penetrating fluid and give a good scrub with a toothbrush or similar. Usually this solves such issues.