ThemeForest Update Installation Error


I have been working with ThemeForest, the Candidate Theme. I was notified of an upgrade to the theme on June 5. I downloaded the theme and tried to install it. After Unpacking the package and Installing the theme, I get the error “Destination folder already exists. /home/content/a2pewpnaspod06_data03/29/41803829/html/wp-content/themes/inforward/” So, I am not sure how to Update this theme. (This is not the style.css error)