So Do you see the live site at all?
Can you verify the Presentation URL in the sites application is correct, and the full one including protocol.
do you have the page builder code initiated application wide?
as part of you app start something like:
builder.UsePreview();
builder.UsePageBuilder(
new PageBuilderOptions()
{ DefaultSectionIdentifier = "MyCode.DefaultSection" }
);
in your controller:
HttpContext.Kentico().PageBuilder().Initialize(model.DocumentID);
Make sure it's the Document ID and NOT the Node ID.
In your page view:
@Html.Kentico().EditableArea("areaX", allowedWidgets: new[] { "MyCode.TeaserWidget" })
regarding the section itself, make sure you have the registration correct:
[assembly: RegisterSection("MyCode.SingleColumnSection", typeof(SingleColumnSectionController), "Singlecolumn", IconClass = "icon-square")]
In the Action of the section controller check the path to the partial view:
public ActionResult Index()
{
return PartialView("Sections/_SingleColumnSection");
}
In the partial view of the section just initiate the Kentico Zone logic:
@Html.Kentico().WidgetZone()
Hope any of this helps...