Failed to open up Azure web app

I'm building MVC Core app using Visual Studio Code on Mac OS.

I created MVC app using yeo generator working with database EF core, everything works fine on localhost. I put correct connection string for my Azure SQL Server db in appsettings.json and ran app from Azure link but got error - "An error occurred while starting the application." without any details.

I checked my Azure by Kudu "http://<yoursitename>.scm.azurewebsites.net", the files are uploaded properly.
I also had a chance to check my Azure SQL using SQL Server Management Studio on Windows, my database is well published.

In my Azure, I got Web App Service, SQL sever(V12), SQL database under the same Resource name. All of their status are online and running.

I did quite a lot of research online for my problem but still got stuck for 2 days.... Please help!!!

What I did was:

1. dotnet ef migrations add InitialCreate -c ApplicationDbContext ==> Compilation succeeded.

2. dotnet ef database update -c ApplicationDbContext ==> Compilation succeeded.

3. dotnet run ==> Compilation succeeded.

Output of step 3:

info: Microsoft.EntityFrameworkCore.Storage.IRelationalCommandBuilderFactory[1]
Executed DbCommand (373ms) [Parameters=[], CommandType='Text', CommandTimeout='30']
IF EXISTS (SELECT * FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_TYPE = 'BASE TABLE') SELECT 1 ELSE SELECT 0

............... // doing DB seeding

info: Microsoft.Extensions.DependencyInjection.DataProtectionServices[0]
User profile is available. Using '/Users/matt/.aspnet/DataProtection-Keys' as key repository; keys will not be encrypted at rest.
Hosting environment: Production
Content root path: /Users/matt/Documents/MyApp
Now listening on: http://localhost:5000
Application started. Press Ctrl+C to shut down.

4. git push -u azure master ==> Deployment successful.

Output of step 4:

............... // doing remote stuffs
remote: Finished successfully.
remote: Running post deployment command(s)...
remote: Deployment successful.
To https://myapp.scm.azurewebsites.net:443/myapp.git
85eecb5..914a2a0 master -> master
Branch master set up to track remote branch master from azure.

appsetting.json:

{"ConnectionStrings": {"DefaultConnection": "Server=tcp:myapp-test.database.windows.net,1433 ;Initial Catalog=myapp-test;Persist Security Info=False;User ID=<remove from blog>;Password=<remove from blog>;MultipleActiveResultSets=False;Encrypt=True;TrustServerCertificate=False;Connection Timeout=30;"
   },"Logging": {"IncludeScopes": false,"LogLevel": {"Default": "Debug","System": "Information","Microsoft": "Information"
       }
   }
}

Configure method in Startup.cs:

public void Configure(IApplicationBuilder app, IHostingEnvironment env, ILoggerFactory loggerFactory, ApplicationDbContext context)
{
    loggerFactory.AddConsole(Configuration.GetSection("Logging"));
    loggerFactory.AddDebug();

    var configuration = new ConfigurationBuilder()
                            .AddEnvironmentVariables()
                            .AddJsonFile(env.ContentRootPath + "/config.json")
                            .Build();

    if (configuration.GetValue<bool>("EnableDeveloperExceptions"))
    {
        app.UseDeveloperExceptionPage();
        app.UseDatabaseErrorPage();
        app.UseBrowserLink();
    }
    else
    {
        app.UseExceptionHandler("/Home/Error");
    }

    app.UseStaticFiles();

    app.UseIdentity();

    app.UseMvc(routes =>
    {
        routes.MapRoute(
            name: "default",
            template: "{controller=Home}/{action=Index}/{id?}");
    });

    // Create database on startup
    using (var serviceScope = app.ApplicationServices.GetRequiredService<IServiceScopeFactory>().CreateScope())
    {
        serviceScope.ServiceProvider.GetService<ApplicationDbContext>().Database.Migrate();
    }

    DbInitializer.Initializer(context);
}

web.config:

<?xml version="1.0" encoding="utf-8"?><configuration><system.webServer><handlers><add name="aspNetCore" path="*" verb="*" modules="AspNetCoreModule" resourceType="Unspecified"/></handlers><aspNetCore processPath="%LAUNCHER_PATH%" arguments="%LAUNCHER_ARGS%" stdoutLogEnabled="true" stdoutLogFile=".\logs\stdout" forwardWindowsAuthToken="false"/></system.webServer></configuration>