How to make Payment for existing Invoices after changing bank account at supplier site level

Summary:

I had made an edit to a supplier record for XYZ Corporation where I added a new bank account to a new site, Remit To- ABC1, NC. Previously, the ACH bank account was under another site, ABC2, NC, but I’ve since inactivated payments for that site. When I looked in some unpaid invoices for XYZ Corporation, it previously had the old bank account (ABC1, NC) info in the Installments, but I couldn’t select the new bank account. I tried to change it to eCheck, but now it’s not appearing when I go to Submit Payment Process Request. Can you let