You will need a new door handle catch. Happened to me last winter with both Passenger and driver side. Tried to fix it myself but no luck. From the inside of the mechanism, there is a thin cable that is attached to the handle, once that breaks then you need a new catch. Cost me £147.00 for 2 doors. I think it is a common problem. Do be carefull if replaceing it yourself as you will have side air bags and you dont want to deploy them in any way. Do let us know how you get on.

__________________
Taj