What kind of computer do you have? If this has been happening with multiple zip files, then maybe you should check out customer service for your device. Or at least see if there is a help option when it comes to storage and files.
If that's not the issue, then you might want to check some of the FAQ & HELPFUL LINKS, specifically the 'Help I can't run the game' one.
I don't know if this will help, since 1. It's already been 11 days, so you might've figured it out already, 2. I'm not the one who created this game, and I suck when it comes to creating and/or modding, and 3. I'm not the best when it comes to technical issues such as this.
Though, I hope that you can still be able to play, and that even if it's not 'fixable', you'll be able to find the source of the problem and use it for future refrences!