Rematch clause not working

I’m encountering an issue with the rematch clause already unfortunately. It seems the weeks until the rematch clause is null is only going up and the opponent isn’t in-acting the clause either now my fighter has been stuck in a limbo of not being able to fight (unless through mandatory challenges) for years. I’ve tried moving up, vacating, and, waiting however long but it seems now that I cant get him any fights all I can do Is cut my contract with him.