An Exception was raised!

Object reference not set to an instance of an object.

Object reference not set to an instance of an object.

at Storefronts.Portals.Ptg.Common.Extensions.UrlHelperExtensions.Author(UrlHelper helper, Author author) in c:\builds\pearsontechnology\gpt\stor\Portals\Storefronts.Portals.Ptg.Common\Extensions\UrlHelperExtensions.cs:line 51
at Storefronts.Portals.Ptg.TriPro.Controllers.HandlersController.Author(String id) in c:\builds\pearsontechnology\gpt\stor\Portals\TriPro.NET\www\Controllers\HandlersController.cs:line 50