Hello there!
I'm sorry you're having problems downloading the game from the site.
This has happened sometime in the past to a member of the discord channel so I send them the files through google drive. I think it will zip the files before the download but at least you can give it a try. In alternative, I think it may be due to the program you use to unzip the files (using winrar should be fine)
Here is the link for the game folder, I'll keep it alive for the next 24 hours:
https://drive.google.com/drive/folders/1eFy3tG1hfvMxtu9FhJNwfL0ryVgSEEI5?usp=sha...