You need to check if the folder exists. If not, then make it. This function does the job. Place it before saving your workbook.
'requires reference to Microsoft Scripting Runtime
Function MkDir(strDir As String, strPath As String)
Dim fso As New FileSystemObject
Dim path As String
'examples of the input arguments
'strDir = "Folder"
'strPath = "C:\"
path = strPath & strDir
If Not fso.FolderExists(path) Then
' doesn't exist, so create the folder
fso.CreateFolder path
End If
End Function
it’s better to avoid using Shell
command for this as it is likely to return errors for various reasons. Your code even ignores/bypasses errors which is not wise.