Looks like that spring can use a reset.

That extra hole that looks like it is missing a set screw is probably there to hold or release the coiled spring; however i dont know for sure because i havent owned one of these before.

I think it may work like this if you wanna give it a try: loosen set screw, unscrew the bar from the door-side, open the door fully. Put the bar (sans door) in the "fully closed" position and tighten the set screw. Pull the bar and door together; reattach.

Pulling the bar out from the closed position at the end should have resistance to it, so be careful.