Hi there!
Sorry you're having this problem!
I'm not an expert on extracting files, but my suggestion would be to delete these files of yours that aren't working entirely, re-download the PC version of the game, and then when you go to extract, drag the zip to your desktop, right click, and choose "Extract Here" instead of extracting to a new folder or anything like that, like it seems like you might have done from your screenshot there?
Sometimes programs can get fussy when they are a folder within a folder, so this is the only suggestion I can think of off the top of my head? I haven't had others complain of this issue, so that's why I suspect it may be an extracting problem.
Cuz the only other thing I could think of is that your computer didn't fully extract all the files for some reason. Thankfully a new build of the game should be coming out within the next month or so, so if this build doesn't work for you, maybe the next one will?
Try this and let me know what happens!