That’s a template blueprint, and I think you might be using the import feature from the blueprints in the automations area, which probably doesn’t handle importing template blueprints.
I haven’t used template blueprints but I think they are yaml only, I would double check how you are supposed to import template blueprints, it may be through some other mechanism.
It looks like you have to manually install it in your filesystem, not using the UI:
The blueprint is importing fine for me, the fact that you are getting an “Unsupported domain” error makes me think that you could be running an older version of HA.