Startup.cs

using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.HttpsPolicy;
using Microsoft.AspNetCore.Identity;
using Microsoft.AspNetCore.Identity.UI;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
using SteveSimmsCodesBlog.Data;

using SteveSimmsCodesBlog.Models;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;

namespace SteveSimmsCodesBlog
{
    public class Startup
    {
        public Startup(IConfiguration configuration)
        {
            Configuration = configuration;
        }

        public IConfiguration Configuration { get; }

        //New Config add to strawberry season 
        public void ConfigureServices(IServiceCollection services)
        {

            //Connects/Communicates with th DB
            services.AddDbContext<ApplicationDbContext>(options =>
                options.UseSqlServer(
                    Configuration.GetConnectionString("DefaultConnection")));
            services.AddDatabaseDeveloperPageExceptionFilter();

            //services.AddDefaultIdentity<IdentityUser>(options => options.SignIn.RequireConfirmedAccount = true)
            //    .AddEntityFrameworkStores<ApplicationDbContext>();

            //Add below line to strawberrySeason
            services.AddIdentity<BlogUser, IdentityRole>(options => options.SignIn.RequireConfirmedAccount = true)
                .AddDefaultUI() // These 3 lines fixed the issue look into it more
                .AddDefaultTokenProviders()
                .AddEntityFrameworkStores<ApplicationDbContext>();

            services.AddControllersWithViews();
            services.AddRazorPages();

            //Register custom DataService Class
            services.AddScoped<DataService>();
            //register a pre configured instance of the  MailSettings class
            services.Configure<MailSettings>(Configuration.GetSection("MailSettings"));
            services.AddScoped<IBlogEmailSender, EmailService>();
        }




        // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
        public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
        {
            if (env.IsDevelopment())
            {
                app.UseDeveloperExceptionPage();
                app.UseMigrationsEndPoint();
            }
            else
            {
                app.UseExceptionHandler("/Home/Error");
                // The default HSTS value is 30 days. You may want to change this for production scenarios, see https://aka.ms/aspnetcore-hsts.
                app.UseHsts();
            }
            app.UseHttpsRedirection();
            app.UseStaticFiles();

            app.UseRouting();

            app.UseAuthentication();
            app.UseAuthorization();

            app.UseEndpoints(endpoints =>
            {
                endpoints.MapControllerRoute(
                    name: "default",
                    pattern: "{controller=Home}/{action=Index}/{id?}");
                endpoints.MapRazorPages();
                //may need to comment out if routes conflict
                // endpoints.MapControllers();

            });
        }
    }
}