itch.io

You just gotta leave it alone to download it said the same for me but i got it after 2 more tries. You also gotta check the download from time time to make sure its downloading.

Itch is a bit weird. Each download gives you an expiring access token, and taking too long or losing connection results in getting a "forbidden" response. Chrome does not handle that well.

Just get a dedicated download manager that can update and resume downloads, and re-start the download as often as needed.