Hi i had similar problem. I my case i have removed compression. From above stack trace i'm not sure is that the case. Hope it helps.
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.