In this theme, you have three types of header style. You can select any one of them. You can customize and update those information form the Header Settings under the Theme Options. Go to Dashboard > Theme Options > Header Settings.
If you see the demo of this theme, you may notice there is a Pre Header bar before the header with business hour, email address, phone number, social icons etc. You can update the Pre Header content from here, on the right side of the Pre Header you can set social icons or login register links.