Why do I get a 500 server error when I run the AspNet Core project exe file?

Question

ASP.NET

If I start with Visual Studio, then the project starts.
If I run the binary, the file is launched, but the server gives an error 500.
The project contains a standard MVC router taken from the Microsoft "box".
If I run the standard HelloWorld, then the binary starts and everything works.
But when you add a router, something changes and the project then works only through the open Visual Studio, and by itself it stops working normally.
What can be wrong?
Thanks

Answer 1

See the logs, if not enabled in the Startup class, then enable them.
Add to the Configure method

loggerFactory.AddConsole(Configuration.GetSection("Logging"));
            loggerFactory.AddDebug();

and in appsettings.json

"Logging": {
        "IncludeScopes": false,
        "LogLevel": {
            "Default": "Verbose",
            "System": "Information",
            "Microsoft": "Information"
        }
    }