Error Message:

Sequence contains no elements

Stack Trace:

at System.Linq.Enumerable.First[TSource](IEnumerable`1 source) at Domain.Helpers.GetItemFromGroup(List`1 listGroup, Int32 itemId, String groupName) at ccnew.Using.SetLabelConvert() at ccnew.Using.SetMode() at ccnew.Using.Page_Load(Object sender, EventArgs e) at System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) at System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) at System.Web.UI.Control.OnLoad(EventArgs e) at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)