You need to activate Evolve Plus Theme, and clear your browser cache before re-visiting your website.
And if your Evolve Free theme is not the latest version ( or somewhere near.. ), it will look different from your current Evolve Plus version.
After you activate your Evolve Plus Theme.
The Theme will prompt you to install reduxframework plugin and theme4press core plugin.
Install and activate both plugin.
Go to Appearance -> Theme Options to make any changes ( NOT Appearance -> Customize ) . Make a simple change and save changes so that there is no empty option value and the theme will look proper.