I had to replace the door handle on my daughters car and found that there is a little plastic piece that would hook to the handle and as you pull it, it would operate the mechanism inside the door. It has ridges on one side that also sits on the door handle inside. I wonder if that has come undone?
You could take out the lock and you would see the item that the arrow is pointing to. If you pull on that, the door should open and the mechanism inside should be working properly. Hope that helps.

You could take out the lock and you would see the item that the arrow is pointing to. If you pull on that, the door should open and the mechanism inside should be working properly. Hope that helps.
