Hello,
Have you created translation for WooCommerce and XStore Core plugins?
https://www.8theme.com/documentation/xstore/theme-translation/base-theme-translation/ https://woocommerce.com/document/woocommerce-localization/
Update translation files https://www.8theme.com/documentation/xstore/theme-translation/translation-files-update/ after the synchronization try to find and translate mentioned strings.
Regards