Hello,
You need download a new theme version from the site http://themeforest.net/item/royal-multipurpose-wordpress-theme/8611976 (log in with your envato account credentials) and download the archive from Downloads section.
Before update delete “woocommerce” folder in the directory wp-content/themes/royal/ and it’ll be reuploaded from a new theme package.
Also update all required plugins https://www.8theme.com/download-plugins/ .
Don’t forget to create back up of your files and database before starting update process!
How to update the theme is described here (it’s for Legenda theme but the process is the same):
Thank you.
Regards,
Eva Kemp.