Follow the steps below to resolve the error below.
On the left-hand menu, click Settings.
Then click Billing.
In the Billing page, click Payment Methods.
If you don't have an existing Payment Method listed here, add one by clicking + Payment Method.
Once added, or if you already have a payment method on file, click the three dots next to the payment method, and click Set as Default.
This step is necessary, even if the existing payment method is displayed as Default.
Go Back to the Client Transaction (ReCats) and try again.