We just started a new round of small groups last night. This is the first set of groups since we moved to Rock. Last night, a number of us entered our attendance online (it worked awesome by the way!). The only problem is that now, if I try to view the history tab of any person that attended a group last night, I get the following error. Any ideas?

An exception has occurred. Details of this error can be found below:

An error occurred on the Rock RMS site on page:
https://rock.foxriverchristian.org:443/Person/2096/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.ProcessRequestWithNoAssert(HttpContext context)
at System.Web.UI.Page.ProcessRequest(HttpContext context)
at ASP.themes_rock_layouts_persondetail_aspx.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.OnDataBinding(EventArgs e)
at System.Web.UI.WebControls.ListControl.PerformSelect()
at System.Web.UI.WebControls.BaseDataBoundControl.DataBind()
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)