Overpayment letter from the unemployment office after 16 years as a hotel front-desk agent

After 23 weeks of benefits I got a notice saying I must repay some of it. I do not usually post, so bear with me. I cannot afford to repay it all at once. Who should I talk to first?

I asked for a waiver and a plan in the same call, and they gave me both forms. It was less scary than I expected.