Object doesn't support this property or method (0x800A01B6) ASP and XML

xValidateOption.save("C:\LogTraces\xValidateOption_________________.xml")

set objdll = server.CreateObject("picco_db.volaroSearch")
set xValidReply = server.CreateObject("Microsoft.FreeThreadedXMLDOM")
Set xValidReply = objdll.GetAvailability_ValidateOption(xValidateOption)

Error Type:
picco_db (0x800A01B6)
Object doesn't support this property or method
/p2/asp/net_includes/picco_get_valid_option.asp, line 249


I get this error with the three lines of code above.
xValidateOption is a xml file.

What would be the reason for the error?

Picco