Multiple types were found that match the controller named 'Controller name'.
In Application\App_Start\RouteConfig.cs, add a fourth parameter for namespaces:
routes.MapRoute(
name: "Default",
url: "{controller}/{action}/{id}",
defaults: new { controller = "Home", action = "Index", id = UrlParameter.Optional },
namespaces: new[] { "AskPLDT.Controllers" }
);