To edit the icon boxes and Twitter above footer, you need go your Dashboard => AE Templates => All AE Templates => Edit “footer bottom” with Elementor

If you don’t see Icon Box and Twitter after import demo. You can go your Dashboard => AE Templates => All AE Templates => Copy shortcode of “footer bottom”.

Then you go to your Dashboard => Appearance => Widgets => Footer top => Edit “text” widget => Paste the shortcode which you copied above.