UPDATE: THE ISSUE HAS BEEN FIXED BY ITCH
Please read this before commenting here about failed downloads of itch games.
itch.io is currently going through a CDN migration, and there are several issues with game downloads.
Please keep in mind that neither I nor the community can do anything about it, except itch.
Unfortunately, there was a small peak of hate speech in the comment section of my game due to this issue.
I'm sorry you had to go through an issue like this, whether it's for paid or free games.
I'm sure itch is working really hard on their process, and for further questions, please reach out to them.