ASP.NET - ASP net

Buenos dias.

Tengo una pagina de intranet hecha en ASP. NET y AJAX y se cae el servicio, para subirlo me toca meterme a IIS bajar el servicio de ASP y volverlo a subir, a ocurrido que se restaura sola, a cierto tiempo.

Agradeceria quein me pudiera dar una mano.

Este es el mensaje que arroja gracias.

Event code: 3005
Event message: An unhandled exception has occurred.
Event time: 25/06/2008 11:03:09 a.m.
Event time (UTC): 25/06/2008 04:03:09 p.m.
Event ID: 6495a32fddac47f980db64d9aed5c27e
Event sequence: 5696
Event occurrence: 18
Event detail code: 0

Application information:
Application domain: /LM/W3SVC/1/Root/ILC-1-128588683533593750
Trust level: Full
Application Virtual Path: /ILC
Application Path: E:ILC-IntranetILC
Machine name: SABOLYNAYA

Process information:
Process ID: 7416
Process name: w3wp.exe
Account name: NT AUTHORITYServicio de red

Exception information:
Exception type: NullReferenceException
Exception message: Object reference not set to an instance of an object.

Request information:
Request URL: http://sabolynaya/ILC/Cartelera_Virtual/ImprimirNoticias.aspx
Request path: /ILC/Cartelera_Virtual/ImprimirNoticias.aspx
User host address: 192.168.4.17
User:
Is authenticated: False
Authentication Type:
Thread account name: NT AUTHORITYServicio de red

Thread information:
Thread ID: 1
Thread account name: NT AUTHORITYServicio de red
Is impersonating: False
Stack trace: at ASP.cartelera_virtual_imprimirnoticias_aspx.__RenderContent1(HtmlTextWriter __w, Control parameterContainer) in E:ILC-IntranetILCCartelera_VirtualImprimirNoticias.aspx:line 54
at System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children)
at System.Web.UI.Control.RenderChildren(HtmlTextWriter writer)
at System.Web.UI.Control.Render(HtmlTextWriter writer)
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.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children)
at System.Web.UI.Control.RenderChildren(HtmlTextWriter writer)
at System.Web.UI.WebControls.WebControl.RenderContents(HtmlTextWriter writer)
at System.Web.UI.WebControls.WebControl.Render(HtmlTextWriter writer)
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.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children)
at System.Web.UI.Control.RenderChildren(HtmlTextWriter writer)
at System.Web.UI.HtmlControls.HtmlForm.RenderChildren(HtmlTextWriter writer)
at System.Web.UI.HtmlControls.HtmlForm.Render(HtmlTextWriter output)
at System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter)
at System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter)
at System.Web.UI.HtmlControls.HtmlForm.RenderControl(HtmlTextWriter writer)
at System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children)
at System.Web.UI.Control.RenderChildren(HtmlTextWriter writer)
at System.Web.UI.Control.Render(HtmlTextWriter writer)
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.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children)
at System.Web.UI.Control.RenderChildren(HtmlTextWriter writer)
at System.Web.UI.Page.Render(HtmlTextWriter writer)
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)