Do you have a virus scanner? That could be stopping the install. If you're on PC or Mac you could try downloading it through the Itch app instead of the webpage.
Viewing post in Our Life: Beginnings & Always - Cove Wedding Story comments
If you still can't download it I'm afraid you'll have to contact Itch.io support. The file is there, so if there's an issue with getting it on your computer it's either the device or the website that's having a problem. I can't do anything to make it download, unfortunately. I hope you're able to have it worked out!