hello there ! sadly there is no way for me to help... as explained to the other folks having this issue ! I suggest waiting a further couple of days. you will be able to download it I think there is just something going on with the site.
sadly i don't have anything setup at the moment to sent the files. however i'm confident I'ts going to start working soon . nobody followed up on this mater from the other folks dealing with this issue so that tells me that is going to work eventually.
I tried sending keys before but that doesn't work either.. and to send it directly i don't have anything set up for that..
I'm truly sorry for the inconvenience , i don't understand what is going on...
hopefully somebody from itch can get back to you and make it work.