This error means the Billing Token is invalid.
The billing token is located on the Recurring Payment Object and is used to charge the Credit Card for Recurring Billing/Donations.
What may have happened is Windcave Billing Tokens often have 4 or 5 leading zeros. If you have migrated the data and used Excel, then it is likely the leading zeros were removed.
Update the Billing Token on the Recurring Payment with the Correct Token.