Thanks for lesson.
My whole solution is fixed by persistenceMode="PathPrefix" DefaultCulture="Bg" Otherlanguages="Fr, Ge"
One Default.aspx page that redirect to BgHome.aspx using standard redirect(~/BgHome.apsx).
Default page and Home page are not localized in cms, are in "Bg" your tongue language. They are in the DefaultCulture="Bg". Now go to Default page and try yourselft the result, if your navigator have settings language as "Us-en". the Page NOT Exist!. You are redirect to ~/en/Home.aspx, this page not exit!!!
I understand that i can change to QueryString and in this case the page is demanded as Home.aspx?language="en" and go to your page in Bg. But now, I use in all my code PathPrefix solution, and my solution make more of 350MB, could you try to understand my problem. I need to use PathPrefix and I have this issue. Could you try to understand my client problem. Try yourselft with and without setting in your navigator plz. Regards