Welcome to the forums. Someone probably changed the rope and didn't wind the spring enough. As long as it's still long enough to start, I would pull the rope out and slide the handle down about 10 inches(the length that's hanging out) and tie another knot in the rope.
ADDED: Looks like, Pain and I, were typing at the same time. LOL.
ADDED: Looks like, Pain and I, were typing at the same time. LOL.