Didn't realize you were in the lehigh valley! Howdy neighbor!
My one capri the door handle was real finicky, there's a specific way I had to grab the door & handle and apply pressure to get it to open.
The somewhat good news is the Capri is stupid easy to break into, what with the lack of a window frame. A piece of steel rod or straightened coat hanger can slip past the window trim and grab the interior door handle without much effort
Once open you can unscrew the door panel and get a look inside to see if anything is broken or needs adjustment