Hi Joao,
I’ll update theme then to support this plugin soon, you’ll be notified.
Site title: I’d expect that this kind of a plugin doesn’t work with each theme, and that’s just the way it is.
Logo – yes, theme hides logo / site title on small resolutions because of lack of space to display it. Unfortunately there is no universal fix here, and it’s different for everyone. Can you send me the domain name, and I can give you some CSS to fix this the best way I can think of.