Process performance counter is disabled- so the requested operation cannot be performed

I am getting the following error on one of our servers - the code is trying to concat two PDF files together. My other servers work fine / not giving this error? Any ideas?

Thanks!!!

Process performance counter is disabled, so the requested operation cannot be performed.

Stack Trace:

[InvalidOperationException: Process performance counter is disabled, so the requested operation cannot be performed.]
Aspose.Pdf.Kit.PdfFileEditor.Concatenate(String xf58958e8a9e9e254, String x3ebc374557fc4f4e, String x2608fe0a208c787d)
eClinical.ReportViewerTop.PrintChart(Int64 lPatID, Boolean bIncludeAllergies, Boolean bIncludeMedSummary, Boolean bIncludeChartSummary, Boolean bincludeNotes, Boolean bincludeMeds, Boolean bincludeOrders, Boolean bincludeResults, Boolean bincludeDocs, String sDate, String eDate) +9600
eClinical.ReportViewerTop.Page_Load(Object sender, EventArgs e) +936
System.EventHandler.Invoke(Object sender, EventArgs e) +0
System.Web.UI.Control.OnLoad(EventArgs e) +67
System.Web.UI.Control.LoadRecursive() +35
System.Web.UI.Page.ProcessRequestMain() +750

Thanks for considering Aspose.

Could u at your convenience attach Pdf files? We will test them and reply u ASAP.

Dear Angelac,

Which version is in use on your machine? please try the latest version from Downloads, the kit needed to access the process information of the host in the former design, but the later releases employ a substitute instead of process information.