Errors while trying to package my demo

So this is a project I made in class a few years ago and I was thinking about how it might actually appeal to a small audience out there as the idea is something I personally haven’t seen before (althought it’s nothing groundbreaking) so I was trying to package it to send it to some local indie devs to scower for any interest and I keep getting this error while packaging the project

Any and all advice or tips in any shape or form will be greatly appreciated!
P.S. I hope that everyone’s doing well during these times