When I click on Form and List Configuration icon (See Attached), an error web page shown up (see attached)

message: An Error Occurred and you can view below. It looks like some webpages are missing. 

Any one can help?

DNN Version:05.04.03

Type:DotNetNuke Community Edition

Module: Form and List (Built in DNN module comes with the Community Edition)

Below is error log in DNN website

AssemblyVersion: 5.4.3

PortalID: 1

PortalName: Tools

UserID: 1

UserName: host

ActiveTabID: 308

ActiveTabName: Holiday Gift Card Promotion

RawURL: /HolidayGiftCardPromotion/tabid/308/ctl/Manage/mid/1025/Default.aspx

AbsoluteURL: /Default.aspx

AbsoluteURLReferrer: https://DomainName/Bulletins/PromotionBulletins/HolidayGiftCardPromotion/tabid/308/Default.aspx

UserAgent: Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.1; WOW64; Trident/6.0)

DefaultDataProvider: DotNetNuke.Data.SqlDataProvider, DotNetNuke.SqlDataProvider

ExceptionGUID: 13412dd8-e71a-4286-9294-ba6f1baba732

InnerException: Unhandled Error:

FileName:

FileLineNumber: 0

FileColumnNumber: 0

Method: DotNetNuke.UI.Containers.ActionBase.get_ActionRoot

StackTrace:

Message: System.Exception: Unhandled Error: ---> DotNetNuke.Services.Exceptions.PageLoadException: An error has occurred. ---> DotNetNuke.Services.Exceptions.ModuleLoadException: An error has occurred. ---> System.NullReferenceException: Object reference not set to an instance of an object. at DotNetNuke.UI.Containers.ActionBase.get_ActionRoot() at DotNetNuke.UI.Containers.ActionBase.Page_Load(Object sender, EventArgs e) --- End of inner exception stack trace --- at DotNetNuke.Services.Exceptions.Exceptions.ProcessModuleLoadException(String FriendlyMessage, Control ctrl, Exception exc, Boolean DisplayErrorMessage) at DotNetNuke.Services.Exceptions.Exceptions.ProcessModuleLoadException(Control ctrl, Exception exc, Boolean DisplayErrorMessage) at DotNetNuke.UI.Containers.ActionBase.Page_Load(Object sender, EventArgs e) at System.EventHandler.Invoke(Object sender, EventArgs e) at System.Web.UI.Control.OnLoad(EventArgs e) at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) --- End of inner exception stack trace --- at DotNetNuke.Services.Exceptions.Exceptions.ProcessPageLoadException(Exception exc, String URL) at DotNetNuke.Framework.PageBase.OnError(EventArgs e) at System.Web.UI.Page.HandleError(Exception e) at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) at System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) at System.Web.UI.Page.ProcessRequest() at System.Web.UI.Page.ProcessRequestWithNoAssert(HttpContext context) at System.Web.UI.Page.ProcessRequest(HttpContext context) at ASP.default_aspx.ProcessRequest(HttpContext context) at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) --- End of inner exception stack trace ---

Source:

Server Name: xxx