The outside check opens a missing path on your site in a new tab: the connection report that answers is served from the public internet's side of the wire — the vantage this page, living on your SSH tunnel, cannot have.
It's the folder that holds your index.html. Files are read here in the browser and travel only through your SSH tunnel to your own server.
restore-site # in the terminal: one step back, if you want the previous content
Password and domain stay in the terminal on purpose: a password is a secret with a guided prompt (config > password), and a domain is bound up with certificate issuance (config > cert).