Thanks, we're trying to get it to work but it's just not :S
I've uploaded an alpha version that's a few days old. The fundamentals are there but, man... we've come so much further than this.
Viewing post in HELP! Game exports but crashes before launch
I'm really sorry to hear that. there's an issue with Unity 2020 versions if you are using that and the itch.io app.
https://github.com/itchio/itch/issues/2496
You have to install kitch to view your content in the app, also make sure you tick enable fallback decompression.