I'm getting an error "There should be 'Ember Lake_Data' folder next to the executable", so it seems like some files are missing. Try zipping the game folder into an archive and uploading it like that.
Thank you for trying it. The game itself isn't playable ATM. We're working hard to get it where you can complete it. Check back in a couple of days. We have hundreds of hours in this project so, obviously, we want you to be able to play it! xD