My Sorento inside drivers side door handle does not work, is it costly to get it repaired?

Sounds like the interior door panel will need to be removed and the linkage to the handle re-attached or replaced. Probably about an hour or mechanic's time if you are not comfortable doing it your self.

Follow this discussion, unfortunately you're not alone! https://www.cargurus.com/Cars/Discussion-t37046_ds615605

I cant get the door panel off door wont open frome eather side un or out drivers door

Ya it locks and unlocks but the door wont open it started with the outside then the inside stoped too

Plz help