Recalc Error -Cambrian School District

Hello Dev Team

I am attempting to recalc rates but getting error
Please see screen print

Cambrian Rates were completed in stage.
Please Recalc the following rates
2018 Anthem Blue Cross - High Plan (Active
2018 Anthem Blue Cross - High Plan (COBRA)
2018 Anthem Blue Cross - Low Plan (Active)
2018 Anthem Blue Cross - Low Plan (COBRA)
2018 Anthem Blue Cross - Mid Plan (Active)
2018 Anthem Blue Cross - Mid Plan (COBRA)
2018 Anthem Blue Cross - PPO H.S.A. Plan (Active)
2018 Anthem Blue Cross - PPO H.S.A. Plan (COBRA)
2018 Delta Dental (Active)
2018 Delta Dental (COBRA)
2018 VSP Vision (Active)
2018 VSP Vision (COBRA)