To fix: Don't pull it apart, that weakens the ring. Instead, twist one end away from you, and one end towards you with pliers. [so it WONT make a c shape] But don't put the pliers directly to the ring, put a piece of cloth/fabric so you dont dent the ring! Squeeze the two parts together, and then twist them back. Hope that makes sense! But whatever you do, don't pull it apart side to side! The ring will snap!