Problem with language switching

I have installed and configured YAMS 1.1.9 on MODx 1.0.12.
But when i switching between different lang versions of site - content always stay in default language.
I work on Denwer - local server
URL has created in right form: blablalba/en/, blablalba/ru/
For example if def lang is EN - then pagetitle will be "Hello" in both versions of site
If i go to Modules->YAMS and set ud RU as default lang then pagetitle will be "Привет" in all versions.
What causes such problem? And how i should fix it?

Do you have any kind of DB cache on? If so try to turn it off, or try just cleaning the cache or disabling it.

You should check the error log from both PHP and MODX, it might have info for you to find the problem easier...

I have try this. Not work. When i use (yams_id) it always = def lang in all versions of the site, i want to try it on real server. Maybee it's because i use local environment