Error on enrollment screen for plan E-Trade

Plan Design Name : Employee Stock Purchase Plan-e-Trade-E-Trade

Exception : Object reference not set to an instance of an object.
App Error Log : -
Employee ID : 5554
Action Name : PlanDesignPV
Model : System.Web.Mvc.HandleErrorInfo
Controller : UserDetails
Web Error Log : at ASP.Page_Areas_UserDetails_Views_UserDetails_EnrollNow_PlanDetailsPV_cshtml.Execute() in d:\WORKTERRA Web\BenAdmin\Areas\UserDetails\Views\UserDetails\EnrollNow_PlanDetailsPV.cshtml:line 709
at System.Web.WebPages.WebPageBase.ExecutePageHierarchy()
at System.Web.Mvc.WebViewPage.ExecutePageHierarchy()
at System.Web.WebPages.WebPageBase.ExecutePageHierarchy(WebPageContext pageContext, TextWriter writer, WebPageRenderingBase startPage)
at System.Web.Mvc.ViewResultBase.ExecuteResult(ControllerContext context)
at System.Web.Mvc.ControllerActionInvoker.<>c_DisplayClass1a.b_17()
at System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilter(IResultFilter filter, ResultExecutingContext preContext, Func`1 continuation)
at System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilter(IResultFilter filter, ResultExecutingContext preContext, Func`1 continuation)
at System.Web.Mvc.ControllerActionInvoker.InvokeAction(ControllerContext controllerContext, String actionName)