When you e-file an amended return, no payment is sent with the amended return. You can either send in your payment with a payment voucher (1040-V), or you can pay Federal taxes owed on the IRS website.
https://www.irs.gov/coronavirus/get-my-payment.
For your State, there should also be a payment voucher, you can check your State's website for the voucher if it does not print, or you can check your State's website for their payment options.
