Errors after language instalation

[s f l]

Hi threre!I edited and installed language pack.Bet it seems to to be some errors"LBL_LIST_MY_CALLS" instead of "normal" titles ,dissapeared random sentences in administrative site,unknown singns instead of letters.I wanted to know-where I made mistake.

[sts]

Seems the format of the language file is corrupt (or the needed file is not available/accessible).

In my 6.0.1 installation LBL_LIST_MY_CALLS is defined in modules/Calls/language/<language>.lang.php

[s f l]

The thing is.....i din't edit that language file(Calls)at all,wich now is like an error,that makes me thing,maybe I should change or do someting in Sugar Admin selection?

[sts]

Maybe problems with access rights?