I am getting the error below when I try to process a credit card on a DNN-based eComm site. From my research I think it might be related somehow to the ASP.NET vulnerability that occurred a while back. Any ideas on what I might need to do? This is an Ali Commerce site and I don't think I can get any support since the original application was stolen from someone else.

Thanks for any ideas you can provide. What a great way to be spending Christmas eve!

ActiveTabName: Shopping Cart
RawURL: /Shopping-Cart/Control/ShippingPayment.aspx
AbsoluteURL: /Default.aspx
AbsoluteURLReferrer: https://www.mystore.net/Shopping-Cart/Control/ShippingPayment.aspx
UserAgent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; GTB6.4; .NET CLR 1.1.4322; InfoPath.2; .NET CLR 1.0.3705; .NET CLR 2.0.50727; .NET CLR 3.0.04506.30; .NET CLR 3.0.04506.648; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729)
DefaultDataProvider: DotNetNuke.Data.SqlDataProvider, DotNetNuke.SqlDataProvider
ExceptionGUID: 49ec579b-8d62-47e2-a4d0-829b4332b9c1
InnerException: The handle is invalid.
FileName:
FileLineNumber: 0
FileColumnNumber: 0
Method: System.Security.Cryptography.Utils.CreateProvHandle
StackTrace:
Message: System.Security.Cryptography.CryptographicException: The handle is invalid. at System.Security.Cryptography.Utils.CreateProvHandle(CspParameters parameters, Boolean randomKeyContainer) at System.Security.Cryptography.Utils.GetKeyPairHelper(CspAlgorithmType keyType, CspParameters parameters, Boolean randomKeyContainer, Int32 dwKeySize, SafeProvHandle& safeProvHandle, SafeKeyHandle& safeKeyHandle) at System.Security.Cryptography.RSACryptoServiceProvider.GetKeyPair() at System.Security.Cryptography.RSACryptoServiceProvider..ctor(Int32 dwKeySize, CspParameters parameters, Boolean useDefaultKeySize) at AliSuite.Commerce.AliServices.EncryptionService.Encrypt(String data, Boolean boolDoPadding, Int32 portalId) at AliSuite.Commerce.DomainModel.Orders.PaymentBase.set_CreditCardNumber(String value) at AliSuite.Commerce.Web.StoreFront.CheckoutBlocks.CreditCardControl.UpdatePayment(PaymentBase payment) at AliSuite.Commerce.Web.StoreFront.CheckoutBlocks.CheckoutPayment.SaveSelectedPaymentInfo(ShoppingCart shoppingCart) at AliSuite.Commerce.Web.StoreFront.CheckoutChoices.StandardShippingPayment.xc0b73a7c4f7561f8(ShoppingCart x5f080c60ee407763) at AliSuite.Commerce.Web.StoreFront.CheckoutChoices.StandardShippingPayment.imgBtnReviewOrder_Click(Object sender, ImageClickEventArgs e)

---

Forerunner Communications, LLC
DotNetNuke Integration Specialists