I have just checked the download link for the "Cul the Sac" game, and it works perfectly. Anyway, I have updated all the links in case of any problem with your download.
Viewing post in The Chant of Dead 1.9.4 Patreon Version comments
I checked the links carefully and updated them all, so you shouldn't have the problem again in the download (I updated the links with the main Patreon page of the game), anyway if you have any problem or question don't hesitate to contact me I'll be more than happy to help you, thanks for your support!