How do I install it?
Copy the contents of the archive to the main Heroes folder.
Or extract it into the Heroes folder.
Added 1 minute ago
Yeah, so you won't be able to buy greymanned psychics, fairies, or vampires either. These cases are quite rare, the first time in half a year, the only solution for now is to save and disable the mod. WiZarDX will return and fix the problem.
P.S. I'll be back home in a week. I'll fix it.
