If they've registered an email address, they can use it to log in. If not, they need to be invited again by an Album Admin (parent member). They'll be able to register a new account from the invitation email they receive.
If they've registered an email address, they can use it to log in. If not, they need to be invited again by an Album Admin (parent member). They'll be able to register a new account from the invitation email they receive.