The payment being created is attempting to use an account which does not exist. This account number will be shown in the error message. It's a combination of the Fund from a line of distribution on the Invoice and the Cash Account from the Bank record. You may also see this error message if you are in the incorrect bank account.

To resolve this issue, do one of the following:
   - Add the account in question.
   - Adjust the invoice so that it does not reference the Fund in question.
   - Select the correct Bank account by choosing the bank account from the drop down menu in Banks