Smart shout language switch - Joomla! Forum - community, help and support

dear users,
again need on issue, i'm confronted right now! actually, i'm on new multi - language site (en + de), using joomla ver.3.6.4. besides component "skyline testimonials", installed "smart shoutbox". issue is, jommla! doesn't seem recognize german language file! did far;
- took original language file en-en.com_smartshoutbox.ini
- created new language file, , named de-de.com_smartshoutbox.ini.
- copied file german language folder (...\language\de-de)
*****but didn't made job! thought of doing these steps :***********
- @ first removed de-de.com_smartshoutbox.ini language folder
- , uninstalled "smart shoutbox" extension site.
- moved de-de.com_smartshoutbox.ini smartshoutbox294j3.zip
hereby, correct path would've been: packages/com_smartshoutbox.zip\languages\site !
- after, assigned new language file perspective com_smartshoutbox.zip/smartshoutbox.xml this:

code: select all

</files>
    <languages folder="languages/site">
        <language tag="en-gb">en-gb.com_smartshoutbox.ini</language>
        <language tag="de-de">de-de.com_smartshoutbox.ini</language>
    </languages>

-finally uploaded (extension).zip
******but neither did job!************
so,i double checked de-de folder, , file sitting there!
i approached manufacturer, explaining situation , asking help!
that's responded me:

it's not smart shoutbox, loads language files, joomla itself. extensions use language strings automatically loaded files.

you need take default english language files, copy them language folder , change language tag @ beginning of file name. that's it, absolutely standard here. every other extension works same way here.

so i'm not sure now, have dig, in order find way around! if know answer, i'll keen know!

thank time!

so far: meanwhile investigated, , found out debugging language files. yet, couldn't find error messages! ok, i'll keep digging!