There is sadly an issue—itch.io doesn't handle root paths. We didn't realize the game was broken on itch's servers because it worked in all of our test deploys, and itch was so unreliable at time of submission that we thought the broken-ness was just the servers failing to load. Turns out that's not the case.
I have a link to a working instance of the game, but I was told that linking externally is not allowed. It's not a new version of the game—it's the same build, just deployed to an environment that works, but I expect it'll still get seen as a cop out. Then again, we're certainly not getting anywhere with a broken build, so maybe we might as well. I'll chat with my partner.
Thank you so much for your interest! Sorry for the inconvenience. In a few days we'll polish up some of the rest and make it freely available no matter what happens.