This error usually occurs when a transaction is initiated for a customer from Chargebee's web interface. It indicates that the transaction failed at the gateway level because the customer’s card details were deleted from Stripe.
In this case, the customer has to be contacted to gather his/her card details. You can verify the cause of this error by checking for an error with the method DELETE and the URL /v1/customerID/source/cardID, in your Stripe transaction logs. Screenshots below are for your reference.