Please update the theme to the latest version 1.3.
Before update delete “woocommerce” folder in the directory wp-content/themes/classico/ and it’ll be reuploaded from a new theme package.
Also update all required plugins http://www.8theme.com/download-plugins/ .
Don’t forget to create back up of your files and database before starting update process!
(it’s for Legenda theme but the process is the same).
You should move your changes to child theme. Child theme folder is included in the theme package, just upload “classico-child” folder to wp-content/themes directory.
After that you’ll be able to update the theme.