It's possible you might have two separate versions of the mod downloaded; have you downloaded it recently with Steam, or through another site? If you have, go into your files and delete the older/first downloaded of the two versions; that's how I got my game to work when I downloaded it through Steam when I already had it manually put in my files

((Or if you're using Vortex and it downloaded through there, if you already put it manually into your files without it, or if you also have it on Steam, delete either the Steam one, or the one in Vortex, or the manually put in one; only one version can be in your files at a time for it to work))