WPML is the better one as it is the premium one and has premium support as well: https://wpml.org/
2. First of all, please go to WordPress Dashboard >> Settings >> General and check what is your site’s main language: https://postimg.cc/hh5NJ1v8 and then you have to go to Loco >> Plugins and edit the WooCommerce plugin: https://postimg.cc/Vr3Bwvst and then check and edit the same language which you has the main language of the site: https://postimg.cc/mhyNJLfP and then you have to click on “Sync” button and after completing the Synchronization, click on save a button: https://postimg.cc/PpRh5G0Y and finally you have to search the word and add the translation and save changes: https://postimg.cc/yD2vrH8b and check back to your site after removing the browser cache.
