Lead Developer
Ah yea, you need to delete the old GP Premium plugin first.
No point doing it with the version you have – there’s a bug dealing with the legacy menu.
Shoot me an email and I’ll send you the updated version 🙂
Documentation: http://docs.generatepress.com/
Adding CSS: http://docs.generatepress.com/article/adding-css/
Ongoing Development: https://generatepress.com/ongoing-development