Bug, need help

Hi I’m trying to play the game with mods. I installed the mods and I clicked on Start Game, but nothing happens. I tried 5 times and waited 20 minutes between. When I checked on Task Manager I saw the VCMI launcher on the list for a few seconds after clicking Start Gmae but it wanished and nothing happened. This is my first time and dont know what could help!

What does client console say?

Also, check logs. Default path on WIndows: My Documents/My Games/vcmi

have you installed game data from the original Heroes 3?

@kambala I forgot but i have it now! Thanks!