Do you mean Settings>Organization and Access>Groups?
I tried a fresh install with and without the admin account, and I don’t have that error . I guess you created some groups here? Are you using the admin account or an account with some specific permissions?
If you mean receiving an email when your Eramba instance is outdated, that is not a thing. When your instance is outdated, the admin will receive an in-app notification upon login letting them know they are running an outdated version.
You can also check if your instance is outdated by going to Settings > System and Maintenance > General.