I've upgraded to DNN 5.6.2, and still using Smith Cart 4.21. I can't upgrade Smith Cart until a number of other issues are resolved.

However I have a problem with my current install:

When a user attempts to make a purchase, and they are logged in, they get a critical error going from step 1 to step 2.

This does not happen if the user is not logged in.

This is a show-stopper.



Here is the event viewer:

AssemblyVersion: 5.6.2
PortalID: 0
PortalName: MyPortal
UserID: 2
UserName: danielt
ActiveTabID: 61
ActiveTabName: Online Store
RawURL: /Online-Store/ctl/step1/mid/460.aspx
AbsoluteURL: /Default.aspx
UserAgent: Mozilla/5.0 (Windows NT 6.1) AppleWebKit/534.30 (KHTML, like Gecko) Chrome/12.0.742.112 Safari/534.30
DefaultDataProvider: DotNetNuke.Data.SqlDataProvider, DotNetNuke.SqlDataProvider
ExceptionGUID: 0bb453a8-b87d-40bc-8b4e-9ef88057cdbf
InnerException: Object reference not set to an instance of an object.
FileName:
FileLineNumber: 0
FileColumnNumber: 0
Method: Smith.DNN.Modules.BuyNow.Step1.GetItemTotal
StackTrace:
Message: DotNetNuke.Services.Exceptions.PageLoadException: Object reference not set to an instance of an object. ---> System.NullReferenceException: Object reference not set to an instance of an object. at Smith.DNN.Modules.BuyNow.Step1.GetItemTotal() at Smith.DNN.Modules.BuyNow.Step1.GetTax() at Smith.DNN.Modules.BuyNow.Step1.GetTotalAfterTax() at Smith.DNN.Modules.BuyNow.Step1.ibNext_Click(Object sender, EventArgs e) at System.Web.UI.WebControls.Button.OnClick(EventArgs e) at System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument) at System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) at System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) at System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) --- End of inner exception stack trace ---
Source: