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It sounds like the linkage or the plastic cam that they hook to came off.I would just pop the door panel off and have a look.I will post general instructions below for you to investigate.

This is a general procedure. Depending on vehicle and model, the order of steps may need to be changed slightly.

1. Remove the mirror control knob (if manual remote) and remove the cover from the mirror mount.

2. Remove the screws securing the armrest and remove the armrest. The screws may be concealed behind plastic caps which can be removed with a non-marring tool.

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Fig. 1: Remove the screws securing the armrest

3. Remove the cover for the inside door handle. It is usually secured by a single screw. Remove it, then slide the cover off over the handle.

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Fig. 2: Remove the screw securing the cover for the inside door handle

4. If not equipped with electric windows, remove the window winder handle. This can be tricky, but not difficult. The handle is retained onto the winder axle by a spring clip shaped like the Greek letter Omega. The clip is located between the back of the winder handle and the door pad. It is correctly installed with the legs pointing away from the length of the winder handle. There are three common ways of removing the clip:

   1. Use a door handle removal tool. This inexpensive tool can be fitted between the winder and the panel and used to push the spring clip free.

   2. Use a rag or piece of cloth and work it back and forth between the winder and door panel. If constant upward tension is kept, the clip will be forced free. Keep watch on the clip as it pops out; it may get lost.

   3. Straighten a common paper clip and bend a very small J-hook at the end of it. Work the hook down from the top of the winder and engage the loop of the spring clip. Pull the clip free.

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      Fig. 3: A homemade tool is handy for removing the window winder clip

      
      

5. In general, power door lock and window switches mounted on the door pad (not the armrest) may remain in place until the pad is removed. Some cannot be removed until the panel is off the door.

6. If the car has manual door locks, remove the lock knob by unscrewing it. If this is not possible at this time, wait until the panel is lifted free.

7. Using a wide, flat-bladed tool, gently pry the panel away from the door. You are releasing plastic inserts from plastic seats. There will be 6 to 12 of them around the door. With care, the plastic inserts can be reused several times

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8. When all the clips are loose, lift up on the panel to release the lip at the top of the door. This may require a bit of manipulation to loosen the panel; do so gently and don't damage the panel. The upper edge (at the window sill) is attached by a series of retaining clips.

9. Once the panel is free, keep it close to the door and look behind it. Disconnect any wiring for switches, lights or speakers which may be attached.

Behind the panel is a plastic sheet, taped or glued to the door. This is a water shield and must be intact to prevent water entry into the car. It must be securely attached at its edges and not be ripped or damaged. Small holes or tears can be patched with waterproof tape applied to both sides of the liner

With the panel off just look for the linkage from the latch to the handle or the latch itself .Look for obvious damage or disconnected parts.

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