PayPal Callback Errors

Posted By UKcentric Wed 29 Feb 2012
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UKcentric
 Posted Wed 29 Feb 2012
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We're getting lots of errors in our error logs like these, many per day. Now PayPal are emailing us saying that our IPNs are not working and may be disabled soon.

The weird thing is, that there are no payments on PayPal that don't tally up with orders in our system, so we think payments are being correctly registered.

So what's the deal with all these errors? Thanks, g.

-----------------------------------------------------------------------------
>>     URL:http://www.curtisward.com/Callback.aspx?g=paypal
>>     Page:
-----------------------------------------------------------------------------
>>     29/02/2012 10:12:27
>>     66.211.170.66
>>     DESCRIPTION:
System.InvalidCastException: Conversion from string "" to type 'Integer' is not valid. ---> System.FormatException: Input string was not in a correct format.
   at Microsoft.VisualBasic.CompilerServices.Conversions.ParseDouble(String Value, NumberFormatInfo NumberFormat)
   at Microsoft.VisualBasic.CompilerServices.Conversions.ToInteger(String Value)
   --- End of inner exception stack trace ---
   at Microsoft.VisualBasic.CompilerServices.Conversions.ToInteger(String Value)
   at Kartris.Paypal.ProcessCallback(String strCallbackData, String strReferrerURL)
   at Callback.Page_Load(Object sender, EventArgs e)
   at System.EventHandler.Invoke(Object sender, EventArgs e)
   at System.Web.UI.Control.OnLoad(EventArgs e)
   at System.Web.UI.Control.LoadRecursive()
   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

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