Adding BuildServiceProvider Code below.

protected override IServiceProvider BuildServiceProvider(IServiceCollection serviceCollection)
{
    var mapper = BuildMapper();
    var config = new Ioc.Config().Map(mapper);

    var builder = new ContainerBuilder();

    serviceCollection.AddAutofac();

    builder.Populate(serviceCollection);

    var executingAssembly = Assembly.GetExecutingAssembly();

    builder.Register(c => mapper).As<IMapper>().SingleInstance();
               
    builder.RegisterType<MvcContext>().As<IMvcContext>().AsSelf().InstancePerRequest();
    builder.RegisterType<Glass.Mapper.Sc.Web.RequestContext> ().As<Glass.Mapper.Sc.Web.IRequestContext>().AsSelf().InstancePerRequest();
    builder.RegisterType<Glass.Mapper.Sc.Web.WebForms.WebFormsContext > ().As<Glass.Mapper.Sc.Web.WebForms.IWebFormsContext>().AsSelf().InstancePerRequest();            
    builder.RegisterType<GlassHtml>().As<IGlassHtml>().AsSelf().InstancePerRequest();
    builder.RegisterType<SitecoreService>().As<ISitecoreService>().AsSelf().InstancePerRequest();
    

    builder.RegisterAssemblyTypes(typeof(SyncTask).Assembly).AssignableTo<SyncTask>().AsSelf().InstancePerRequest();
    //builder.RegisterAssemblyTypes(executingAssembly).AsSelf().SingleInstance();

    builder.RegisterType<JobsService>().AsSelf().InstancePerRequest();
    builder.RegisterType<JobAlertService>().AsSelf().InstancePerRequest();
    builder.RegisterType<NavigationService>().AsSelf().InstancePerRequest();
    builder.RegisterType<RecaptchaService>().AsSelf().InstancePerRequest();
    builder.RegisterType<CandidateService>().As<ICandidateService>().InstancePerRequest();
    builder.RegisterType<CandidateJobService>().AsSelf().InstancePerRequest();
    builder.RegisterType<MyAccountService>().As<IMyAccountService>().InstancePerRequest();
    builder.RegisterType<PasswordStorage>().As<IPasswordHasher>().InstancePerRequest();
    builder.RegisterType<PageMetaMediator>().AsSelf().SingleInstance();

    builder.Register(c =>
        {
            var scope = c.Resolve<ILifetimeScope>();
            var globalConfig = scope.Resolve<GlobalConfig>();
            return new CachedLocationService(globalConfig, new LocationService(globalConfig));
        })
        .As<ILocationService>()
        .SingleInstance();

    builder.Register(c =>
        {
            var scope = c.Resolve<ILifetimeScope>();
            var globalConfig = scope.Resolve<GlobalConfig>();
            var currencySanatiser = scope.Resolve<ICurrencySanatiser>();
            return new CachedCurrencyService(globalConfig, currencySanatiser, new CurrencyService(globalConfig, currencySanatiser));
        })
        .AsImplementedInterfaces()
        .SingleInstance();

    builder.Register(c =>
        {
            var scope = c.Resolve<ILifetimeScope>();
            var globalConfig = scope.Resolve<GlobalConfig>();
            return new CachedSharePriceFeedService(globalConfig, new SharePriceFeedService());
        })
        .AsImplementedInterfaces()
        .SingleInstance();

    builder.Register(c =>
    {
        var scope = c.Resolve<ILifetimeScope>();
        var globalConfig = scope.Resolve<GlobalConfig>();
        if (globalConfig.GdprDataApi == null || String.IsNullOrEmpty(globalConfig.GdprDataApi.ClientId) || String.IsNullOrEmpty(globalConfig.GdprDataApi.ClientSecret))
            return null;

        return new GdprDataService(globalConfig);
    })
    .AsSelf()
    .SingleInstance();

    builder.RegisterType<BreadcrumbService>().As<IBreadcrumbService>().InstancePerRequest();
    builder.RegisterType<ContentSearchService>().AsSelf().InstancePerRequest();
    builder.RegisterType<EventSearchService>().AsSelf().InstancePerRequest();
    builder.RegisterType<JobResultsBuilder>().AsSelf().InstancePerRequest();
    builder.RegisterType<JobApplicationsBuilder>().AsSelf().InstancePerRequest();
    builder.RegisterType<JobFilterBuilder>().AsSelf().InstancePerRequest();
    builder.RegisterType<CryptoService>().AsSelf().InstancePerRequest();
    builder.RegisterType<CompressorService>().AsSelf().InstancePerRequest();
    builder.RegisterType<ArticleSearchQueryBuilder>().As<IArticleSearchQueryBuilder>().InstancePerDependency();
    builder.RegisterType<JobSearchQueryBuilder>().As<IJobSearchQueryBuilder>().InstancePerDependency();
    builder.RegisterType<ArticleSearchDefaultsBuilder>().As<IArticleSearchDefaultsBuilder>().InstancePerDependency();
    builder.RegisterType<ArticleSearcher>().As<IArticleSearcher>().InstancePerDependency();

    builder.RegisterType<SavedJobBuilder>().AsSelf().InstancePerRequest();
    builder.RegisterType<SavedSearchBuilder>().AsSelf().InstancePerRequest();
    builder.RegisterType<BasicQueryBuilder>().As<IBasicQueryBuilder>().InstancePerDependency();
    builder.RegisterType<CloudDocumentService>().As<ICloudDocumentService>().InstancePerRequest();
    //builder.RegisterType<SharePriceFeedService>().As<ISharePriceFeedService>().InstancePerRequest();
    builder.RegisterType<RedisCacheManager>().As<IRedisCacheManager>().InstancePerDependency();
    builder.RegisterType<GdprDataService>().As<IGdprDataService>().InstancePerRequest();

    builder.Register(c =>
        {
            var scope = c.Resolve<ILifetimeScope>();
            var globalConfig = scope.Resolve<GlobalConfig>();

            return new GoogleJobsServiceHelper(globalConfig);
        })
        .AsSelf()
        .SingleInstance();

    builder.RegisterType<GoogleJobsService>().As<IExternalJobSearchIndexService>().InstancePerRequest();

    // Feed Builders
    builder.RegisterType<IndeedFeedWriter>().As<IFeedWriter>().Named<IFeedWriter>("indeed");
    builder.RegisterType<IndeedFeedBuilder>().As<IIndeedFeedBuilder>().InstancePerRequest();
    builder.RegisterType<IndeedFeedModelSerializor>().As<IIndeedFeedModelSerializor>().InstancePerRequest();

    builder.RegisterType<ClickwiseFeedWriter>().As<IFeedWriter>().Named<IFeedWriter>("clickwise");
    builder.RegisterType<ClickwiseFeedBuilder>().As<IClickwiseFeedBuilder>().InstancePerRequest();
    builder.RegisterType<ClickwiseFeedModelSerializor>().As<IClickwiseFeedModelSerializor>().InstancePerRequest();

    builder.RegisterType<ZipRecruiterFeedWriter>().As<IFeedWriter>().Named<IFeedWriter>("ziprecruiter");
    builder.RegisterType<ZipRecruiterFeedBuilder>().As<IZipRecruiterFeedBuilder>().InstancePerRequest();
    builder.RegisterType<ZipRecruiterFeedModelSerializor>().As<IZipRecruiterFeedModelSerializor>().InstancePerRequest();

    builder.RegisterType<JobRapidoFeedWriter>().As<IFeedWriter>().Named<IFeedWriter>("jobrapido");
    builder.RegisterType<JobRapidoFeedBuilder>().As<IJobRapidoFeedBuilder>().InstancePerRequest();
    builder.RegisterType<JobRapidoFeedModelSerializor>().As<IJobRapidoFeedModelSerializor>().InstancePerRequest();

    builder.RegisterType<TalentNexusFeedWriter>().As<IFeedWriter>().Named<IFeedWriter>("talentnexus");
    builder.RegisterType<TalentNexusFeedBuilder>().As<ITalentNexusFeedBuilder>().InstancePerRequest();
    builder.RegisterType<TalentNexusFeedModelSerializor>().As<ITalentNexusFeedModelSerializor>().InstancePerRequest();

    builder.RegisterType<ForcesNetRecruiterFeedWriter>().As<IFeedWriter>().Named<IFeedWriter>("forcesnet");
    builder.RegisterType<ForcesNetRecruiterFeedBuilder>().As<IForcesNetRecruiterFeedBuilder>().InstancePerRequest();
    builder.RegisterType<ForcesNetRecruiterFeedModelSerializor>().As<IForcesNetRecruiterFeedModelSerializor>().InstancePerRequest();

    builder.Register<FeedBuilderFactory>((context, parameters) =>
        {
            var scope = context.Resolve<ILifetimeScope>();
            return type =>
            {
                var builderType = type.ToLower().Trim();
                return scope.ResolveOptionalNamed<IFeedWriter>(builderType);
            };
        }).AsSelf().InstancePerDependency();
    builder.Register<SyncTask.SyncTaskFactory>(c =>
        {
            var scope = c.Resolve<ILifetimeScope>();
            return (t => scope.Resolve(t) as SyncTask);
        }).AsSelf().InstancePerRequest();
    builder.Register(c => config).AsSelf().SingleInstance();

    builder.RegisterType<JobSearchFilterCoodinateLookup>().As<IJobSearchFilterCoordinateLookup>().InstancePerRequest();
    builder.RegisterType<SalaryNormaliser>().As<ISalaryNormaliser>().InstancePerRequest();
    builder.RegisterType<JobsSearchResultVmBuilder>().As<IJobsSearchResultVmBuilder>().InstancePerRequest();
    builder.RegisterType<TimeRemainingVmBuilder>().As<ITimeRemainingVmBuilder>().InstancePerRequest();
    builder.RegisterType<SalaryDescriptionBuilder>().As<ISalaryDescriptionBuilder>().InstancePerRequest();
    builder.RegisterType<CurrencySanatiser>().As<ICurrencySanatiser>().SingleInstance();
    builder.RegisterType<JobSearcher>().As<IJobSearcher>().InstancePerRequest();

    //builder.Register(c => new HttpContextWrapper(HttpContext.Current)).As<HttpContextBase>().InstancePerRequest();

    builder.RegisterModule<MediatRModule>();
    //builder.RegisterModule(new AutofacWebTypesModule());

    builder.RegisterControllers(executingAssembly);
    builder.RegisterApiControllers(executingAssembly);

    builder.RegisterModelBinders(typeof(JobFilterModelBinder).Assembly);
    builder.RegisterModelBinderProvider();
    builder.RegisterFilterProvider();

    //builder.RegisterAssemblyModules(executingAssembly);

    var container = builder.Build();

    var mvcResolver = new AutofacDependencyResolver(container);
    var webApiResolver = new AutofacWebApiDependencyResolver(container);                                 
    

    // Register the resolver as the ASP.net WebApi2 resolver.
    //GlobalConfiguration.Configuration.DependencyResolver = new ConditionalDependencyResolver(webApiResolver, GlobalConfiguration.Configuration.DependencyResolver);

    GlobalConfiguration.Configuration.DependencyResolver = webApiResolver;

    // Register the resolver as the ASP.net MVC resolver.
   
    DependencyResolver.SetResolver(mvcResolver);

    AutofacDependencyResolver.SetAutofacDependencyResolverAccessor(() => mvcResolver);

    // Register the resolver with Sitecore controller factory.
    //ControllerBuilder.Current.SetControllerFactory(new AutofacControllerFactory(mvcResolver, ControllerBuilder.Current.GetControllerFactory()));

    RouteTable.Routes.MapRoute("Service", @"service/{action}", new { controller = "Service" });
    RouteTable.Routes.MapRoute("Indeed", @"feed/{builderType}/{jobRepositoryId}", new { controller = "Feed", action = "Build", jobRepositoryId = UrlParameter.Optional });
    RouteTable.Routes.MapRoute("SitecoreShellDefault", @"sitecore/shell/mvc/{controller}/{action}", new { controller = "CustomEditor" });

    AntiForgeryConfig.SuppressIdentityHeuristicChecks = true;

    //Translate.ResetCache(true);

    // Custom model binders
    //HttpContext.Current.Items["77D90B5A-236C-4116-8C4E-E4517753E74C"] = new VersionCountDisabler();

    RegisterSocialDependencies();          

    return container.Resolve<IServiceProvider>();
}