It seems like the deployment of the last version was a little wonky, causing some files to get cut from the last version. I've updated it to include those files so hopefully you should be able to play now by downloading the latest version!
Huh, that's weird. Can you post a screenshot of the error message? Also, did you make sure to extract all the files from the folder? If you don't extract every file it may give you an error like that ^^
