Email activation failed.

Sub SendEmail()
  'Uses early binding
  'Requires a reference to the Outlook Object Library
  Dim OutlookApp As Outlook.Application
  Dim MItem As Outlook.MailItem
  Dim olAppointment As Outlook.AppointmentItem
  
  Dim cell As Range
  Dim Subj As String
  Dim EmailAddr As String
  Dim Adate As Date
  Dim Atime As String
  Dim Msg2 As String
  Dim SendStatus As String
  
      
  'Create Outlook object
  Set OutlookApp = New Outlook.Application
  
  'Loop through the rows
  For Each cell In Columns("H").Cells.SpecialCells(xlCellTypeConstants)
    If cell.Value Like "*@*" Then
    
      'Get the data
      SendStatus = cell.Offset(0, 1)
      If SendStatus <> "To be sent" Then GoTo NotThisOne
      Subj = cell.Offset(0, -1).Value
      EmailAddr = cell.Value
      Adate = cell.Offset(0, -6).Value
      Atime = cell.Offset(0, -5).Value
      FileLocation = "C:\ApptFiles\OutlookAppointment.ics"
      cell.Offset(0, 1).Value = "Sent"

      
    Dim olApp As Outlook.Application
    Dim olApt As AppointmentItem
    
    Set olApp = New Outlook.Application
    Set olApt = olApp.CreateItem(olAppointmentItem)
    Msg2 = "New Task"
    
    With olApt
        .Start = Adate
        .End = .Start + TimeValue("00:30:00")
        .Subject = Msg2
        .Location = " "
        .Body = Msg
        .BusyStatus = olBusy
        .ReminderMinutesBeforeStart = 2880
        .ReminderSet = True
        '.Display
        
        'Save the iCalendar file in a known folder
        .SaveAs "C:\ApptFiles\OutlookAppointment.ics", olICal
        
        'Use Close to retain the new appointment within the Outlook Calendar, or Delete to delete it.
        'Both options keep the just-created .ics file
        
        '.Close False
        .Delete
    
    End With

      Set MItem = OutlookApp.CreateItem(olMailItem)
      With MItem
        .To = EmailAddr
        .Subject = Subj
        .Body = Msg
        .Attachments.Add (FileLocation)
        .Send
        '.Save 'to Drafts folder
      End With
NotThisOne:
    End If
  Next
  Set OutlookApp = Nothing
  Set olApt = Nothing
  Set olApp = Nothing

End Sub

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