My fiancé forgot to pay a traffic ticket. Now there’s a bench warrant out for his arrest. (USA)

My fiancé recently got pulled over for expired registration after our move from West Virginia to Ohio. The ticket was for a minor misdemeanor, and he went to court with the correct documentation. The judge reduced the fine, but he forgot to pay it off. Now, just before the holidays, we received a letter from the BMV stating his license and registration are suspended due to an active warrant. We haven’t received any notice about this warrant and can’t find details online, likely because court mail went to our old address. The court is closed until Monday, and I’m anxious about how this will be handled.