Replacing Multiple Smart Objects via Script - Wall Art Mockup

Okay lets say that before start these process first I have adjusted the dimensions of the photos to the same size as the smart objects in which they will be placed.

Now what? I've tried to write some code but as I'm not good at javascript, I can't find the problem in the code.

This is my first code

// Set the path to the input folder
var inputFolderPath = "C:\\Users\\Sami Ersoy\\Desktop\\Bulk Mockups wall art\\Input\\";

// Get a reference to the active document
var doc = app.activeDocument;

// Loop through each smart object layer and place the corresponding image
for (var i = 1; i <= 6; i++) {
  var smartObjName = "ARTWORK " + i + " - 3:4";
  var smartObj = doc.layers.getByName(smartObjName);

  // Check if the smart object layer was found
  if (!smartObj) {
    alert("Could not find layer '" + smartObjName + "'.");
    continue;
  }

  // Activate the smart object layer and open the contents
  doc.activeLayer = smartObj;
  app.executeAction(charIDToTypeID("placedLayerEditContents"), undefined, DialogModes.NO);

  // Get a reference to the active document and place the corresponding image
  var subDoc = app.activeDocument;
  var inputFilePath = inputFolderPath + "artwork" + i + ".jpg";
  var inputImgFile = new File(inputFilePath);
  subDoc.activeLayer = subDoc.layers[0];
  subDoc.activeLayer.name = "Smart Object Contents";
  subDoc.activeLayer.bounds = subDoc.bounds;
  subDoc.paste();

  // Close and save the smart object contents
  subDoc.close(SaveOptions.SAVECHANGES);
}

// Close the original document without saving
doc.close(SaveOptions.DONOTSAVECHANGES);

and this is the second

// Set the input and output folders
var inputFolder = new Folder("C:/Users/Sami Ersoy/Desktop/Bulk Mockups wall art/Input");
var outputFolder = new Folder("C:/Users/Sami Ersoy/Desktop/Bulk Mockups wall art/Output");

// Get all the input files in the folder
var inputFiles = inputFolder.getFiles("*.jpg");

// Loop through the input files and process each mockup
for (var i = 0; i < inputFiles.length; i += 6) {
  // Loop through the layers and place the input images in the smart objects
  var layers = app.activeDocument.layers;
  for (var j = 0; j < layers.length; j++) {
    var layer = layers[j];

    // Check if the layer is a smart object
    if (layer.kind == LayerKind.SMARTOBJECT) {
      var inputIndex = i + parseInt(layer.name) - 1;

      // Check if there is an input image for this smart object
      if (inputIndex < inputFiles.length) {
        var inputImg = inputFiles[inputIndex];

        // Place the input image into the smart object
        app.activeDocument.activeLayer = layer;
        app.doAction("Place", "Default Actions");
      }
    }
  }

  // Save the output file with a new name in the output folder
  var outputFile = new File(outputFolder + "/mockup_" + (Math.floor(i / 6) + 1).toFixed(0).padStart(3, '0') + ".jpg");
  app.activeDocument.saveAs(outputFile);
  app.activeDocument.close(SaveOptions.DONOTSAVECHANGES);
}