When I add a map to the maps folder, and then try to launch the game, I get an error: "empty pointer to creature #180". Then, "Press ok to skip the following creatures checks", and then "Original version of the game Heroes of Might and Magic V not found". Version 3.1! As soon as I delete the map, the game starts immediately. Help me :D
You are most likely launching the game through H5_Game.NCF. Try launching it without the mod.
If that doesn't help, clear the folder with mods and maps.