You can change all texts of this plugin for every languages.
To do that, you must follow this process :
- Download this free software: Poedit Gettext Translations Editor.
- Thanks to your FTP, save folder wp-content/plugins/stern_taxi_fare/languages to your local drive.
- Open file in your language where end of file is *.po
- Change text you want in Poedit.
- Save file.
- Overwrite this file on you server thanks to ftp.
- All set!