Hi Leo,
As below.
RequestUrl: URL/.../areas.aspx, StackTrace: [CrmException: SQL timeout expired.]
at Microsoft.Crm.Application.Platform.ServiceCommands.PlatformCommand.XrmExecuteInternal()
at Microsoft.Crm.Application.Platform.ServiceCommands.RetrieveRecordChangeHistoryCommand.Execute()
at Microsoft.Crm.ApplicationQuery.RetrieveAuditByObjectCommand.RetrieveData()
at Microsoft.Crm.ApplicationQuery.ExecuteQuery()
at Microsoft.Crm.Application.Platform.Grid.GridDataProviderQueryBuilder.GetData(QueryBuilder queryBuilder)
at Microsoft.Crm.Application.Platform.Grid.GridDataProviderQueryBuilder.LoadQueryData()
at Microsoft.Crm.Application.Platform.Grid.GridDataProviderQueryBuilder.LoadData()
at Microsoft.Crm.Application.Platform.Grid.GridDataProviderBase.PrepareGridData()
at Microsoft.Crm.Application.Platform.Grid.GridDataProviderBase.PrepareData()
at Microsoft.Crm.Application.Controls.GridUIProvider.Render(HtmlTextWriter output)
at Microsoft.Crm.Application.Components.UI.Grid.DataGrid.RenderInnerHtml(HtmlTextWriter output)
at Microsoft.Crm.Application.Components.UI.Grid.DataGrid.Render(HtmlTextWriter output)
at System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter)
at Microsoft.Crm.Application.Components.UI.CrmUIControlBase.RenderControl(HtmlTextWriter writer)
at System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children)
at System.Web.UI.HtmlControls.HtmlContainerControl.Render(HtmlTextWriter writer)
at System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter)
at System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children)
at System.Web.UI.HtmlControls.HtmlContainerControl.Render(HtmlTextWriter writer)
at System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter)
at System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children)
at System.Web.UI.HtmlControls.HtmlContainerControl.Render(HtmlTextWriter writer)
at System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter)
at System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children)
at System.Web.UI.HtmlControls.HtmlContainerControl.Render(HtmlTextWriter writer)
at System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter)
at Microsoft.Crm.Application.Components.UI.CrmUIControlBase.RenderControl(HtmlTextWriter writer)
at System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children)
at System.Web.UI.HtmlControls.HtmlContainerControl.Render(HtmlTextWriter writer)
at System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter)
at System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children)
at System.Web.UI.HtmlControls.HtmlContainerControl.Render(HtmlTextWriter writer)
at System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter)
at System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children)
at System.Web.UI.HtmlControls.HtmlContainerControl.Render(HtmlTextWriter writer)
at System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter)
at System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children)
at System.Web.UI.HtmlControls.HtmlContainerControl.Render(HtmlTextWriter writer)
at System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter)
at Microsoft.Crm.Application.Components.UI.CrmUIControlBase.RenderControl(HtmlTextWriter writer)
at Microsoft.Crm.Application.Components.PageHandlers.AreaPageHandler.RenderAreaPageContent(HtmlTextWriter writer)
at Microsoft.Crm.Application.Components.PageHandlers.AreaPageHandler.HandlerRender(HtmlTextWriter output)
at System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter)
at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
[HttpUnhandledException: Exception of type 'System.Web.HttpUnhandledException' was thrown.]
at System.Web.UI.Page.HandleError(Exception e)
at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
at System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
at System.Web.UI.Page.ProcessRequest()
at System.Web.UI.Page.ProcessRequest(HttpContext context)
at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)