I have worked with this theme before with none of the same issues.
1. The Gallery is not pulling through to the Visual Composer element. Only the screen loading element displays.
2. Also if I want to navigate away / or back to the home page, the site stops responding.
3. In Theme Settings the colour selection picker and manual entry field for the colour is missing. It’s just displaying a boxed single colour swatch..?
4. On mobile, there is a login section under the footer? I don’t know why.
It all just feels very buggy.
One other question: Is there a simple way to assign different text styles to H1, H2, etc and the menu?