You do not need to do changes in php files to translate text. What woocommerce version do you use?
You need to have appropriate woocommerce and theme versions, for example, you use theme 3.0.3 version – http://prntscr.com/ii9qqt, here you may find changelog – https://themeforest.net/item/legenda-responsive-multipurpose-wordpress-theme/5888906
If theme version that you use is compatible with WC version, likely you simply need to synchronize translation files.
Also, on site that you provided, I do not see the problem http://prntscr.com/ii9sb5
Feel free to ask if you have any other questions.
Thank you for your fast response the thing is that I want to test in staging mode first the template 3.6 with woocommerce 2.6.9 and after that with the new woocommerce edition 3.3.3 but if I understand right if update the woocommerce to the latest edition with template update 3.3.3 everything will be ok?
Our mission is to help Internet businesses and their customers interact in a way that mirrors real-world customer experience: personal, human, and fun.
Upload your translation files
Lorem ipsum dolor sit amet consectetur adipisicing elitsed do
Love us as much as we love you?
If you love XStore theme and have something nice to say
don’t hesitate to tell about this! We’d appreciate if you could take a moment to give us 5-stars!