I developed a eCommerce Website using ASP.Net 3.5 and C#. It is working good with Visual Stdio 2010. I uploaded my website to my domain under the public folder.
It show the error like below: 
Click for full-size, or here's the stack trace fragment from the local error page.
NullReferenceException: Object reference not set to an instance of an object
SageFrame.Framework.PageBase.OptimizeJs(List`1 lstJsColl, Int32 Mode) +7940
SageFrame.Framework.PageBase.LoadModuleJs() +944
SageFrame.Framework.PageBase.OnPreRender(EventArgs e) +233
System.Web.UI.PreRenderRecursiveInternal() +107
It was working fine before!
The code of the page_Load() is:
protected void Page_Load(object sender, EventArgs e)
{
string selectedCurrency = string.Empty;
string MainCurrency = string.Empty;
try
{
StoreSettingConfig ssc = new StoreSettingConfig();
MainCurrency = ssc.GetStoreSettingsByKey(StoreSetting.MainCurrency, GetStoreID, GetPortalID, GetCurrentCultureName);
if (Session["SelectedCurrency"] != null && Session["SelectedCurrency"] != "")
{
selectedCurrency = Session["SelectedCurrency"].ToString();
}
else
{
selectedCurrency = MainCurrency;
}
string islive = Request.Form["custom"];
string test = string.Empty;
const string strSandbox = "https://www.sandbox.paypal.com/cgi-bin/webscr";
const string strLive = "https://www.paypal.com/cgi-bin/webscr";
test = bool.Parse(islive.Split('#')[6]) ? strSandbox : strLive;
var req = (HttpWebRequest)WebRequest.Create(test);
//Set values for the request back
req.Method = "POST";
req.ContentType = "application/x-www-form-urlencoded";
byte[] param = Request.BinaryRead(HttpContext.Current.Request.ContentLength);
string strRequest = Encoding.ASCII.GetString(param);
strRequest += "&cmd=_notify-validate";
req.ContentLength = strRequest.Length;
var streamOut = new StreamWriter(req.GetRequestStream(), System.Text.Encoding.ASCII);
streamOut.Write(strRequest);
streamOut.Close();
var streamIn = new StreamReader(req.GetResponse().GetResponseStream());
string strResponse = streamIn.ReadToEnd();
streamIn.Close();
if (strResponse == "VERIFIED")
{
string payerEmail = Request.Form["payer_email"];
string paymentStatus = Request.Form["payment_status"];
string receiverEmail = Request.Form["receiver_email"];
string amount = Request.Form["mc_gross"];
string invoice = Request.Form["invoice"];
string addressName = Request.Form["address_name"];
string addressStreet = Request.Form["address_street"];
string addressCity = Request.Form["address_city"];
string addressZip = Request.Form["address_zip"];
string addressCountry = Request.Form["address_country"];
string transID = Request.Form["txn_id"];
string custom = Request.Form["custom"];
string[] ids = custom.Split('#');
int orderID = int.Parse(ids[0]);
int storeID = int.Parse(ids[1]);
int portalID = int.Parse(ids[2]);
string userName = ids[3];
int customerID = int.Parse(ids[4]);
string sessionCode = ids[5];
string pgid = ids[7];
var tinfo = new TransactionLogInfo();
var tlog = new TransactionLog();
tinfo.TransactionID = transID;
tinfo.AuthCode = "";
tinfo.TotalAmount = decimal.Parse(amount);
tinfo.ResponseCode = "1";
tinfo.ResponseReasonText = "";
tinfo.OrderID = orderID;
tinfo.StoreID = storeID;
tinfo.PortalID = portalID;
tinfo.AddedBy = userName;
tinfo.CustomerID = customerID;
tinfo.SessionCode = sessionCode;
tinfo.PaymentGatewayID = int.Parse(pgid);
tinfo.PaymentStatus = paymentStatus;
tinfo.PayerEmail = payerEmail;
tinfo.CreditCard = "";
tinfo.RecieverEmail = receiverEmail;
tinfo.CurrencyCode = selectedCurrency;
tlog.SaveTransactionLog(tinfo);
if (paymentStatus.Equals("Completed"))
{
var paypalobj = new PayPalHandler();
paypalobj.ParseIPN(orderID, transID, paymentStatus, storeID, portalID, userName, customerID, sessionCode);
}
}
else if (strResponse == "INVALID")
{
//log for manual investigation
}
else
{
//log response/ipn data for manual investigation
}
// }
}
catch (Exception ex)
{
ProcessException(ex);
// throw new Exception("This Page is not accessible!");
}
}
