You use old versions of theme and plugins, so I would recommend making updates.
Follow instructions and update theme to the latest version 3.1: https://www.8theme.com/demo/docs/royal/#!/installation_upgrade
Also, update all required plugins: https://www.8theme.com/download-plugins/
Before uploading theme files delete “woocommerce” folder, which is located in wp-content/themes/royal/ to avoid problems with old files (it’ll be reuploaded from a new theme package). Don’t forget to create backup of your files and database before starting update process!
You need to enter your purchase code to activate the theme and skip Setup Wizard.
