Please update the theme to the latest version and Woocommerce as well. 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).