You need to recreate the configuration if you do not have a backup of the original HiveManager configuration.
It is not possible to go the other way around and automatically take HiveOS configuration to programatically infer and create HiveManager configuration. It is a manual process that you will have to do by yourself.
To add to Nick's response, I've had to pull delta audits to see what was mismatched, then make the config changes in HiveManager to bring them into sync. I would just do a little at a time to make sure I wasn't introducing new issues.