Header missing on Mobile device + other text is completely off

The mobile version of my site is missing the header and a lot of text isnt aligning properly. I have tried reformatting as well as research how to fix this, but not having luck. I downloaded WPTouch (free version) but that didn’t change anything either. I just want my site to at least show the main header, menus and social links, like the desktop version. My current theme is called Authentic by ThemeForest.

The page I need help with: [log in to see the link]