Web Enrolments - Application Error

Object reference not set to an instance of an object.

System.NullReferenceException

/PSWeb16/webenrolment.aspx?page=~/webcontrols/checkout_home_ALevel.ascx

   at checkout_home_ALevel.CheckAndAddProgramme() in D:\CompassCC\PSWebEnrolments1618\webcontrols\checkout_home_ALevel.ascx.vb:line 248
   at checkout_home_ALevel.OnLoad(EventArgs e) in D:\CompassCC\PSWebEnrolments1618\webcontrols\checkout_home_ALevel.ascx.vb:line 103
   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)

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