The whole live chat server core is opened for everyone update as they requirements and the languages files are available for anyone update.
Most of the language files was made for our own users and you can find several typo errors there this is why is opened to everyone to update.
Keep in mind if decide to update the language files would be great if you can upload the updated version in this forum in order to help more people.
After you made the update the process on your server is a simple files replacement process.
path : \components\com_activehelper_livehelp\server\i18n\en , files :
File : lang_guest_en.php
Translations included :
English | Español | Português | Deutsch | Français | Italiano | Nederlands | Czech | Greek | Arabic | Farsi | Türkçe | Hebrew | Russian | Русский | Danish | Swedish | Norwegian | Romanian | Hungarian | Croatian | Bulgarian | Slovak | Lithuanian | Serbian | Indonesian | Slovenian| Estonian | Latvian | Georgian | 日本語 | 简体中文
Attached you can find all the languages files on a zip.