Object reference not set to an instance of an object.

Version: 4.0.117

Exception Page: http://maintstarweb.cwgdn.com/WorkRequest/combres.axd/siteJs/469440049/"javascript:void('",e.more,"')/"",'

System.NullReferenceException: ServiceLocator has not been initialized; I was trying to retrieve Maintstar.Core.IActionExecuter ---> System.NullReferenceException: Object reference not set to an instance of an object.
   at ProjectBase.Utils.Ioc.GetService(Type type, String key) in D:\Testing\ms\ProjectBase\ProjectBase.Utils\Ioc\Ioc.cs:line 56
   --- End of inner exception stack trace ---
   at ProjectBase.Utils.Ioc.GetService(Type type, String key) in D:\Testing\ms\ProjectBase\ProjectBase.Utils\Ioc\Ioc.cs:line 70
   at ProjectBase.Utils.Ioc.GetService[T]() in D:\Testing\ms\ProjectBase\ProjectBase.Utils\Ioc\Ioc.cs:line 91
   at Maintstar.WebApp.Code.Application.WorkRequestHttpApplication.Application_EndRequest(Object sender, EventArgs e) in D:\Testing\ms\WorkRequest\Maintstar.WebApp\Code\Application\WorkRequestHttpApplication.cs:line 340