I had visited your website.
I think you had switched to using parallax slider.
If you do not want to use translation, you will have to physically change the words in the theme.
The file path is evolve-plus/library/functions/tabs-widget.php at lines 41,46,51
Our support does not include providing assistance in modifying theme codes.
You can contact us for customization service via https://theme4press.com/theme-customization-service/