at Oxygen.Scope.Entry.get_Value()
   at Oxygen.Scope.Entry`1.get_Value()
   at Oxygen.OXYGEN.Retrieve(Type type, ID id, Boolean nocache)
   at Oxygen.OXYGEN.Retrieve(Type type, ID id)
   at Oxygen.OXYGEN.Retrieve[T](ID id)
   at Active3.AbstractWebPage`1.Retrieve(ID id)
   at Active3.CalendarEvent.Period.get_CalendarEvent()
   at Active3.CalendarEvent.GetEventsByDate(DateTime date)
   at Active3.EventsCaneldar.Render(TextWriter w)
   at Oxygen.UIControl.ToString()
   at System.Web.HttpWriter.Write(Object obj)
   at System.Web.UI.HtmlTextWriter.Write(Object value)
   at System.Web.UI.HtmlTextWriter.Write(Object value)
   at ASP.active_aspx.__Render__control1(HtmlTextWriter __w, Control parameterContainer) in c:\inetpub\vhosts\impantokratoros.gr\httpdocs\active.aspx:line 674
   at System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children)
   at System.Web.UI.Control.RenderChildren(HtmlTextWriter writer)
   at System.Web.UI.Page.Render(HtmlTextWriter writer)
   at Active3.Asp.RenderSkin(TextWriter w)
   at Active3.ModalAction.RenderPage(TextWriter w)
   at Active3.Asp.Render(HtmlTextWriter w)
   at System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter)
   at System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter)
   at System.Web.UI.Control.RenderControl(HtmlTextWriter writer)
   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)