[Zubersoft]

I'm curious how you ended up in that state as unique group names are usually enforced. Regardless, the database is going to need to be cleaned up. You can either delete the keys and recreate them (which I imagine would be somewhat tedious), or you can send me either a link to a library backup or a copy of your database file (mobilesheets.db). If you are using the Android version, you'll need to enable "Expose Database" under Settings->Storage in order to get access to mobilesheets.db

Mike