I have a 99 four door sunfire, and the back door is completely siezed shut. the outer handle moves freely but you cant move either the inside lock nor the handle. ive fulled the door panels and oiled them to no avail and today my drivers side door is starting to stick. is this a common problem and how might i go about fixing it. everything inside the back door feels to be in place but nothing will budge.

pop off the door panel theres probably a rod knocked off or something i cant see the latch locking if so the handle wouldnt move freely

im assuming the outer handle moves freely because the lock is suck in the on position.