If you already have a space in Snapshot which does not have an ENS name, you need to migrate your space to ENS. The following guide takes through the procedures of how to successfully migrate your space to ENS.
1. Create a space with ENS
To migrate your space you will need first to create the space with ENS.
You can use this url to get your previous space settings populated in the form: https://snapshot.page/#/<ens_space_id>/settings/<previous_space_id>