Uncaught exception for missing fields in GCS Snapshot backup config

[waynelovely-rq]

There is an exception that occurs in the constructor for ConfiguratorController.
When either gcs_csv_delimiter or gcs_csv_export_header are missing for a GCS Snapshot configuration, the s2-configurator service in Cloud Run just dies.

I do not see a way to diagnose this.

The README is either out of date or it is a bug with setting those fields to defaults and moving on.

I logged the JsonProcessingException to find out.