resource cannot be found for calling back to HttpPost method - asp.net-mvc

Question

I have an MVC project. My site connect to bank gateway and after successfull payment, the results POST to my website to run VerifyPayment method (this method is of type HttpPost).
[HttpPost]
// [AllowAnonymous]
public ActionResult VerifyPayment( VerifyResult Vresult )
{
try
{
// var transact = Request.Form["transId"];
// TempData["msg"] = $"<script>alert('transaction id is: {transact}');</script>";
//// for test
// return View(new VerifyResult() { success = true, SuccessMessage = "nice", Amount = "20000" });
if ( !string.IsNullOrEmpty(Request.Form["transId"]) )
{
Payment ob = new Payment();
string result = ob.verify(Request.Form["transId"].ToString());
JsonParameters Parmeters = JsonConvert.DeserializeObject<JsonParameters>(result);
if ( Parmeters.status == 1 )
{
var userId = User.Identity.GetUserId();
var user = db.Users.Where(u => u.Id == userId).FirstOrDefault();
user.SuccessfullPayment = true;
user.FactorNo = User.Identity.GetUserId();
user.TraceNo = Request.Form["traceNumber"];
user.TransId = int.Parse(Request.Form["transId"]);
user.CardNo = Request.Form["cardNumber"];
user.PurchasedDate = DateTime.Now;
user.State = Parmeters.status;
user.Message = Request.Form["message"];
db.Entry(user).State = System.Data.Entity.EntityState.Modified;
db.SaveChanges();
Vresult.success = true;
Vresult.TransActionID += Request.Form["transId"].ToString();
Vresult.Amount += Parmeters.amount.ToString();
Vresult.SuccessMessage = "پرداخت با موفقیت انجام شد.";
return RedirectToAction("Index", "DownloadEbook");
}
else
{
Vresult.error = true;
Vresult.ErrorMessage = "کدخطا : " + Parmeters.errorCode + "<br />" + "پیغام خطا : " + Parmeters.errorMessage;
}
}
}
catch ( Exception )
{
Vresult.error = true;
Vresult.ErrorMessage = "متاسفانه پرداخت ناموفق بوده است.";
}
return View(new AllNeededModels() { VerifyResult = Vresult });
}
VerifyPayment method has its own View.cshtml file called "VerifyPayment.cshtml".
#model Mahdavimanesh.Models.AllNeededModels
#{
ViewBag.Title = " ";
}
<div class="container">
#if (Model.VerifyResult.success)
{
<div class="row" style="margin-top: 50px;">
<div class="col-lg-6 center-block" style="float: none;">
<div class="alert alert-success">
<asp:Label ID="lblSuccess" runat="server" ForeColor="Green"
Text=""></asp:Label>
#Model.VerifyResult.SuccessMessage
<br />
: #Model.VerifyResult.TransActionID
<br />
: #(Model.VerifyResult.Amount)
</div>
</div>
</div>
}
else
{
<div class="row" style="margin-top: 50px;">
<div class="col-lg-6 center-block" style="float: none;">
<div class="alert alert-danger">
#Model.VerifyResult.ErrorMessage
</div>
</div>
</div>
}
</div>
Everything works correctly on my localhost. However, when I publish the website, after successful payment and calling back to my website, it notifies me the error of "Resource Cannot be Found". I think the problem is raised because of HttpPost VerifyMethod, and that VerifyPayment.cshtml is for HttpGet method. if this, why it works on my local machine?
Is there any clue?