Hello Roz,
As I see you are using old versions of theme and Visual Composer. Please update the theme to the latest version. Before update delete “woocommerce” folder in the directory wp-content/themes/legenda/ and it’ll be reuploaded from a new theme package.
Also update VC plugin https://www.8theme.com/download-plugins/ .
Don’t forget to create back up of your files and database before starting update process!
Best regards,
Jack Richardson.