InvalidOperationException: Could not find a Surface controller route in the RouteTable for controller name GatedAccessSurface
Umbraco.Cms.Web.Website.Routing.UmbracoRouteValueTransformer.HandlePostedValues(PostedDataProxyInfo postedInfo, HttpContext httpContext)

namespace Website.App_Code.Components.GatedAccess
{
    public class GatedAccessViewComponent : ViewComponent
    {
        private readonly IUmbracoContextAccessor _umbracoContextAccessor;
        private readonly IUmbracoContextFactory _umbracoContextFactory;

        public GatedAccessViewComponent(IUmbracoContextAccessor umbracoContextAccessor, IUmbracoContextFactory umbracoContextFactory)
        {
            _umbracoContextAccessor = umbracoContextAccessor;
            _umbracoContextFactory = umbracoContextFactory;
        }

        public IViewComponentResult Invoke()
        {
            GatedAccessItem model = new GatedAccessItem();           
            var content = _umbracoContextAccessor.GetRequiredUmbracoContext().PublishedRequest.PublishedContent;
            model.pageUrl = content.Url();
            model.fileName = String.Empty;
etc etc
            model.gac_optin = false;

            return View(model);
        }
    }
}

@using System.Web;
@using Website.App_Code.Controllers;
@using Website.App_Code.Models;

@model GatedAccessItem

    <div class="gated-access-block">       
            @Html.TextBoxFor(m => m.gac_email, new { autocapitalize = "off", @class = "form-control", placeholder = Model.emailLabelAlias })          
            @Html.TextBoxFor(m => m.gac_name, new { @class = "form-control", placeholder = "name" })
            @Html.TextBoxFor(m => m.gac_companyName, new { @class = "form-control", placeholder = "company" })        
       </div>

async void VideoGated()
    {      
            if (Model.Value<bool>("gated")) // && !GatedAccessLogic.UserIsRegistered())
            {               
                @await Component.InvokeAsync("GatedAccess")               
            }      
    }