When the single payment link is no longer available for your invoices you cannot pay them with a credit card.
In this case, if you're a non-EU customer we ask you to send the payment via PayPal to support@webador.com. If you send us a screenshot of the payment confirmation, including the transaction ID, we'll be happy to restore access to the Editor.
If you're an EU customer you can also pay by bank transfer. Please transfer the outstanding amount to the Webador bank account stating the invoice number(s) clearly in the description:
IBAN: NL94INGB0007465097 (BIC: INGBNL2A)