Failing to Delete Backup vault

[james03160927]

  DEBUG   [Failed] InvalidRequestException: Backup vault cannot be deleted because it contains recovery points.
          {
            RespMetadata: {
              StatusCode: 400,
              RequestID: "32f14c91-d28d-4ffd-b114-9a73192dcccf"
            },
            Code_: "ERROR_9101",
            Message_: "Backup vault cannot be deleted because it contains recovery points."
          }