If the game isn't launching I'd recommend deleting all the files and downloading them fresh and trying it again. It's possible the DLC files weren't fully in the right place or that your virus scanner now has a problem with the game, that's happened to a few people. Also don't download any of the files using the Itch App. We recently discovered that also makes the DLCs not work right. Of and did you make sure the folder was properly extracted before it was added to the game? The way it is when it's first downloaded won't work, it has to be unzipped first. If none of those are the problem, you can try emailing us at our support email and you can send us screengrabs of what everything looks like on your end ^^
gb.patch.games@gmail.com