Yeah on dev release there is no such problem.

hm, can you try it with the dev. release? I have already fixed this long time ago. We use ctlang instead of lang because of this.

Regards,
Daniel

So the problem is that component's language var is being changed with Joomla's language var. Here is the dump of data var of IInput:

[code type=php][datarotected] => Array
(
[option] => com_ctransifex
[task] => download
[language] => ru-RU
[Itemid] => 1178
[lang] => ru
)[/code]

Funny! The only workaround I found is to get language var directly from get. So I've changed
[code type=php]$input = JFactory::getApplication()->input;[/code]
to
[code type=php]$input = JFactory::getApplication()->input->get;[/code]

And now it is working :woohoo:

Interesting that on another website everything is working fine without this change...

look at components\com_ctransifex\controllers\download.php - it seems that we can't fetch the zip from the database. Dump the query and look at the db.

Regards,
Daniel