I¡¦d got the Error message below:
Something wrong at line 94, ¡§order¡¨ isn¡¦t an instance.
Is there anyone had the same question?

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Object reference not set to an instance of an object.
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 System.NullReferenceException: Object reference not set to an instance of an object.


 94: Order order = Order.GetOrderByID(orderID);
 95:
 96: this.Response.Redirect(order.GetPayPalPaymentUrl() ,false);
 97: }
 98: else


Source Code: d:\AspLab\TBH\ShoppingCart.aspx.cs line: 96


[NullReferenceException: Object reference not set to an instance of an object.]
   MB.TheEzOutdoor.UI.ShoppingCart.wizSubmitOrder_Fin ishButtonClick(Object sender, WizardNavigationEventArgs e) in d:\AspLab\TBH\ShoppingCart.aspx.cs:96
   System.Web.UI.WebControls.Wizard.OnFinishButtonCli ck(WizardNavigationEventArgs e) +105
   System.Web.UI.WebControls.Wizard.OnBubbleEvent(Obj ect source, EventArgs e) +693
   System.Web.UI.WebControls.WizardChildTable.OnBubbl eEvent(Object source, EventArgs args) +17
   System.Web.UI.Control.RaiseBubbleEvent(Object source, EventArgs args) +35
   System.Web.UI.WebControls.LinkButton.OnCommand(Com mandEventArgs e) +115
   System.Web.UI.WebControls.LinkButton.RaisePostBack Event(String eventArgument) +163
   System.Web.UI.WebControls.LinkButton.System.Web.UI .IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +7
   System.Web.UI.Page.RaisePostBackEvent(IPostBackEve ntHandler sourceControl, String eventArgument) +11
   System.Web.UI.Page.RaisePostBackEvent(NameValueCol lection postData) +174
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +5102

I'd found the error, I did not type data to the OrderStatues table.
Order.GetOrderByID(orderID) will return Null.
"WaitingForPayment", "Confirmed" , "Verified" used in the code.
It's easy to Change them to Chinese ?