It sounds like one of two things could have happened, first you will need to remove the door panel which means the drivers seat, Here is a guide that will give you an idea how to remove it.
Once the door panel is off look for a lock rod that has fallen off of the lock arm of the latch.
Here are some diagram (below) on what it is on your car.
Second is the latch itself has fallen apart and will need to be replaced. This can be rough since the latch will need to be taken apart inside the door.
Please let us know what happens, we are interested to see what it is.
Images (Click to enlarge)
Friday, June 30th, 2017 AT 2:16 PM