Invasion

There's a bug with Elva: I position my troops, click to start the battle, and a demon appears on the full screen, rearing up and casting a spell, and the game freezes with the message "program stopped working," and Windows tries to fix the error. It takes three to five attempts to get past this stage of the battle and continue. By the way, is it normal that the main hero has no name or biography? At coordinates 58, 157, there's an abandoned mine that can't be accessed.