Reading Clover data into a Google Sheet

The function below is populating the spreadsheet until it gets this error:

TypeError: Cannot read properties of undefined (reading 'elements')
getCloverSales @ getCloverSales.gs:33

I can't seem to figure out how to trap the error and continue to get the range of records.
Any help would be greatly appreciated. I'm a noob to javascript and I'm trying to wrap my brain around it.

Thank you in advance for any insight.

    function getCloverSales(startDate, endDate) {
      var startDate = "1675530917000"; // epoch unix format incl ms
      var endDate = "1676177999000";   // epoch unix format incl ms
      var API_KEY = 'xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx';
      var MERCHANT_ID = 'xxxxxxxxxxxxx';
      var url = 'https://api.clover.com/v3/merchants/' + MERCHANT_ID + '/orders?filter=createdTime%3E' +       startDate + '&filter=createdTime%3C' + endDate + '&expand=lineItems&limit=1000&orderBy=createdTime';
  var response = UrlFetchApp.fetch(url, {
    headers: {
      Authorization: 'Bearer ' + API_KEY
      
    }
  });
  var data = JSON.parse(response.getContentText());
    Logger.log(startDate);
    Logger.log(endDate);
    Logger.log(data);
  var sheet = SpreadsheetApp.getActiveSpreadsheet().getSheetByName('Sales Custom');
  sheet.clearContents();
  sheet.appendRow(['Date', 'Item Code', 'Item Name', 'Price', 'Order Ref']); // Write the header row
  for (var i = 0; i < data.elements.length; i++) {
    Logger.log(i);
    
    var order = data.elements[i];
    var lineItems = order.lineItems.elements;
        
        for (var j = 0; j < lineItems.length; j++) {
          Logger.log(j);
          Logger.log(lineItems);
          var lineItem = lineItems[j];
          var itemName = lineItem.name;
          var itemCode = lineItem.itemCode;
          var itemTime = lineItem.createdTime;
          var date = new Date(itemTime);
          var formattedDate = Utilities.formatDate(date, 'GMT-7:00', 'MM-dd-yyyy HH:mm:ss');
          var price = lineItem.price / 100; // Convert from cents to dollars
          // var total = lineItem.total;
          var orderRef = lineItem.orderRef;
          sheet.appendRow([formattedDate, itemCode, itemName, price, orderRef]); // Write the sales item data into the sheet
    }
  }
  }

Modification points:

• From your provided sample value, I could find the reason for your current issue of TypeError: Cannot read properties of undefined (reading 'elements'). In your value, the element without the property of lineItems not existing. By this, it seems that such the error occurs.
• In your script, appendRow is used in a loop. In this csae, the process cost will be high. Ref (Author: me)
• I thought that var orderRef = lineItem.orderRef; might be var orderRef = lineItem.orderRef.id;.

When these points are reflected in your script, how about the following modification?

From:

sheet.appendRow(['Date', 'Item Code', 'Item Name', 'Price', 'Order Ref']); // Write the header row
for (var i = 0; i < data.elements.length; i++) {
  Logger.log(i);
  
  var order = data.elements[i];
  var lineItems = order.lineItems.elements;
      
      for (var j = 0; j < lineItems.length; j++) {
        Logger.log(j);
        Logger.log(lineItems);
        var lineItem = lineItems[j];
        var itemName = lineItem.name;
        var itemCode = lineItem.itemCode;
        var itemTime = lineItem.createdTime;
        var date = new Date(itemTime);
        var formattedDate = Utilities.formatDate(date, 'GMT-7:00', 'MM-dd-yyyy HH:mm:ss');
        var price = lineItem.price / 100; // Convert from cents to dollars
        // var total = lineItem.total;
        var orderRef = lineItem.orderRef;
        sheet.appendRow([formattedDate, itemCode, itemName, price, orderRef]); // Write the sales item data into the sheet
  }
}

To:

var ar = [['Date', 'Item Code', 'Item Name', 'Price', 'Order Ref']];
for (var i = 0; i < data.elements.length; i++) {
  if (!data.elements[i] || !data.elements[i].hasOwnProperty("lineItems") || !data.elements[i].lineItems.hasOwnProperty("elements")) continue;
  var temp = [];
  var order = data.elements[i];
  var lineItems = order.lineItems.elements;
  for (var j = 0; j < lineItems.length; j++) {
    var lineItem = lineItems[j];
    var itemName = lineItem.name;
    var itemCode = lineItem.itemCode;
    var itemTime = lineItem.createdTime;
    var date = new Date(itemTime);
    var formattedDate = Utilities.formatDate(date, 'GMT-7:00', 'MM-dd-yyyy HH:mm:ss');
    var price = lineItem.price / 100;
    var orderRef = lineItem.orderRef.id;
    temp.push([formattedDate, itemCode, itemName, price, orderRef]);
  }
  ar = [...ar, ...temp];
}
sheet.getRange(1, 1, ar.length, ar[0].length).setValues(ar);