VBA Error - Type MisMatch - sql

Question

I don't know why Excel - VB is behaving stupidly. My tool has several user forms. Everything was working fine until I renamed a command button's caption. I am getting a Type miss-match error. The command loads another form. The form_initialise code is below. when I commented out all of the code the code in userform_initialise it works fine, but when remove the comment ' from all the lines it give me an error Type Mismatch.
Earlier it was working perfect and my company is using it as well. Can anyone help.
Private Sub UserForm_initialize()
lstUser.AddItem Sheets("LAUNCH").Range("Z1").Value
Application.ScreenUpdating = False
Dim conn As Object
Dim rs As Object
Dim objMycmd As Object
Dim rc As Long
Dim sConnString As String
' Create the connection string.
sConnString = "Provider=SQLOLEDB;Data Source=XXXXXXXX;" & _
"Initial Catalog=XXXXXX;" & _
"Integrated Security=XXXXXXXX;" & _
"User ID=XXXXXXXXXXXXXXXX;" & _
"Passsword=XXXXXXXXXXXXXXXXX;"
' Create the Connection and Recordset objects.
Set conn = CreateObject("ADODB.Connection")
' Open the connection and execute.
conn.Open sConnString
Sql = "Select DISTINCT [Exec] from tblKPI3"
Set rs = CreateObject("ADODB.Recordset")
rs.Open Sql, conn, adOpenStatic
If rs.EOF Then
MsgBox "No Records"
Else
rs.Movefirst
If Sheets("LAUNCH").Range("AA1") = "Yes" Then
With frmReport.lstUser
.Clear
Do
.AddItem rs![exec]
rs.MoveNext
Loop Until rs.EOF
End With
End If
End If
rs.Close
conn.Close
end sub