Xero Sync Error: Invoice on this payment is in Paid or Voided status in Xero

Why the Sync Error occurs

This error occurs when a payment cannot sync to Xero because the invoice is either no longer in Xero or is already marked as paid.

If the invoice is in Xero, remove the payment in Xero and sync to allow the payment to sync over.
If the invoice is not in Xero, contact Customer Support to resync the invoice to Xero.
Contact Customer Support to clear the error if the payment does not need to sync to Xero.