There's no spring tension on that arm?

If not, loosen the attachment bolt and make sure the return spring is seated to the fork retention holes.

If there is insufficient tension, screw in the little screw that increases tension. It may help to decrease tension on the other arm. If you cannot get enough tension, unseat and grab the spring and give it a pull outwards about 2 to 3 inches. reseat and try again.

Your cable is kinked and needs to be replaced, but this shouldn't be causing your issue