HoMM3 HD is a mod (add-on) for the game Heroes of Might and Magic 3.

оригинальный сод

or is it actually Complete, judging by the fonts (and the glitches)?
if it's the Complete version from Buka, then in the Heroes3HDSetup.exe utility, in the Your HoMM3 Version field, you need to select [Russian] Полное Собрание or Мега Пак (if the Russian Mega Pack is downloaded and installed), otherwise it will be impossible to play.