Can you please let me know what do you want to do with the black button at the header which contains Contact Us link? If you want to remove it then it can be removed from theme option. Though I’ve checked it & it seems it’s not hiding the button. It seems it’s a bug from the theme & we’re going to fix it anyway in future update. Till then to make the site the way you want is to use a simple css to remove that button. I’ve added the css in custom code under theme option.
You’ll be notified from themeforest once the theme is updated with the fixed bug 🙂