Translation Problem – Serbian Language

Hi,

I installed Transposh version and in the backend I could see the option to select SERBIAN LANGUAGE ; I chose it; somehow the serbian language was not reflecting when I choose this from the front end. Can anyone help me on this?

I need Serbian and English language in my website and I need this in free.

Regards.

https://wordpress.org/plugins/transposh-translation-filter-for-wordpress/