Hi, I try to create a script in Laserfiche Workflow  who export documents of the Laserfiche Repository in my Windows Folder. The code that I write is this:

int documentid = some default ID to test ;
            using (ClientManager lfclient = new ClientManager())
            {
                ExportOptions exportoptions = new ExportOptions();
                Laserfiche.ClientAutomation.PageSet pages = new Laserfiche.ClientAutomation.PageSet();
                exportoptions.PageNumbers = pages;
                exportoptions.DoNotPrompt = true;
                exportoptions.DestinationPath = exportPath;
                exportoptions.ImageFormat = ImageType.Pdf;
                exportoptions.DocumentPart = ExportType.Images;




                LaunchOptions launchOptions = new LaunchOptions();
                launchOptions.ServerName = serverName;
                launchOptions.RepositoryName = Repository Name;
                launchOptions.UserName = Username;
                launchOptions.Password = Password;

                ClientInstance singleLf;
                MainWindow mainwindow = null;
                singleLf = lfclient.LogIn(launchOptions, out mainwindow);
                mainwindow.ExportById(documentid, exportoptions);
             }

I use Laserfiche.ClientAutomation version 10.2 for exporting documents. When I run only the script he run without errors and export the document. When I run the workflow with the script this warning appear and the export doesn't work.

What should I do to escape of this warning/error?