Flask Deployment Help

Hi there, I am trying to deploy my project but keep running into errors. Build succeeds but then I get an application error page. This is my first app/deployment so I'm likely missing something relatively simple. I've attached some pictures of my file structure as well as code that may have something to do with this. Let me know what more I should provide. Project ID: 796a7792-1a7c-4126-8478-db74bf35d244