Unable to Access History

[BelAirIT]

When accessing a student's history, the following error comes up:

An exception has occurred. Details of this error can be found below: An error occurred on the Rock RMS site on page: https://rock.belairpres.org:443/Person/4602/History HttpUnhandledException in System.Web Message Exception of type 'System.Web.HttpUnhandledException' was thrown. Stack Trace 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) -NullReferenceException in System.Web Message Object reference not set to an instance of an object. Stack Trace at System.Web.UI.WebControls.ListControl.PerformDataBinding(IEnumerable dataSource) at System.Web.UI.WebControls.ListControl.PerformSelect() at RockWeb.Blocks.Checkin.AttendanceHistoryList.BindFilter() at RockWeb.Blocks.Checkin.AttendanceHistoryList.OnLoad(EventArgs e) at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

[BelAirIT]

It seems to happen after adding kids' records manually into group attendance.