Error Details:
"There was an error adding user accounts in the Administrators local group to the CitrixStorefrontAdministrators local group. See the log files described in the article 'Troubleshoot Storefront' in the Storefront product documentation. Try adding these user accounts manually, then reboot the server and re-run the installer."
From the Storefront installer log file, could see following exceptions:
Stale SID entry in Administrators group of Storefront server was preventing the installer to translate and add to CitrixStoreFrontAdministrators group in the server which is evident from the installer log file of Storefront