Error

Unable to connect to database.  Check database connection information and make sure the database server is running.
   at Microsoft.SharePoint.Library.SPRequest.PreInitServer(String bstrAbsoluteRequestUrl, String bstrServerRelativeUrl, Int32 lZone, Guid gApplicationId, Guid gSiteId, Guid gDatabaseId, String bstrDatabaseServer, String bstrDatabaseName, String bstrDatabaseUsername, String bstrDatabasePassword, Boolean fHostHeaderIsSiteName)
   at Microsoft.SharePoint.SPSite.PreinitializeServer(SPRequest request)
   at Microsoft.SharePoint.SPWeb.InitializeSPRequest()
   at Microsoft.SharePoint.SPWeb.EnsureSPRequest()
   at Microsoft.SharePoint.SPWeb.get_Request()
   at Microsoft.SharePoint.SPWeb.InitWebPublic()
   at Microsoft.SharePoint.SPWeb.get_Locale()
   at Volvo.CWP.SharePoint.Applications.Internet.Context.InternetContext.GetCulture()
   at Volvo.CWP.SharePoint.CWPContext..ctor(SPWeb web)
   at Volvo.CWP.SharePoint.Applications.Internet.Context.InternetContext..ctor(SPWeb web, IConnectedProviderFactory connectedProviderFactory, IListItemProvider listItemProvider)
   at Volvo.CWP.SharePoint.Applications.Internet.Context.InternetContextResolver.ResolveContext(SPWeb web)
   at Volvo.CWP.SharePoint.CWPContextApplicationResolver.ResolveContext(SPWeb web)
   at Volvo.CWP.SharePoint.CWPContext.Create(SPWeb web, ICWPContextResolver resolver, Boolean isElevated)
   at Volvo.CWP.SharePoint.CWPContext.get_ElevatedContext()
   at Volvo.CWP.SharePoint.SPWebExtensions.PropertyBag(SPWeb web, String key, String& value, String defaultValue)
   at Volvo.CWP.SharePoint.SPWebExtensions.PropertyBag(SPWeb web, String key, String defaultValue)
   at Volvo.CWP.SharePoint.FieldControls.OmnitureBase.OnInit(EventArgs e)
   at System.Web.UI.Control.InitRecursive(Control namingContainer)
   at System.Web.UI.Control.InitRecursive(Control namingContainer)
   at System.Web.UI.Control.InitRecursive(Control namingContainer)
   at System.Web.UI.Control.InitRecursive(Control namingContainer)
   at System.Web.UI.Control.InitRecursive(Control namingContainer)
   at System.Web.UI.Control.InitRecursive(Control namingContainer)
   at System.Web.UI.Control.InitRecursive(Control namingContainer)
   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)