After translation - the fight does not start

Hello.. I translated the game into Russian.. The entire text was translated .. But now it does not let you into battle(even in the starting dungeon) .. Returned the original file heroes_text_english_eu.txt and now he lets them fight ... The question arose : Which point in the heroes_text_english_eu.txt can he be responsible for such an error? :(:

https://www.youtube.com/watch?v=1JP1RNDUG6g

I determined by the method of exclusion - it is impossible to translate the name of the quest .
In this case, "HEROES_QUEST_STAGE_NAME_QUEST_GNOLL_WATCHMAN" "Perilous Ruins"