You posted under "module" forum, so I hope this is correct and you are not referring to actual chat component
BlastChat Module picks your Joomla language and if blastchat language file is available, it uses that file.
| Code: |
$lang = & JFactory::getLanguage();
$backward_lang = $lang->getBackwardLang();
|
it tries to find file first using "$lang->getTag()" then using "$backward_lang"
What is your Joomla website default language and which language is being loaded by the module?