BlogML to Disqus error message

Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation.  All rights reserved.

C:\Users\Jane>C:\BlogMLtoDisqus.exe C:\habari.xml C:\disqus.wxr

Unhandled Exception: System.Xml.XmlException: An error occurred while parsing En
tityName. Line 17, position 122.
   at System.Xml.XmlTextReaderImpl.Throw(Exception e)
   at System.Xml.XmlTextReaderImpl.Throw(String res, Int32 lineNo, Int32 linePos
)
   at System.Xml.XmlTextReaderImpl.HandleEntityReference(Boolean isInAttributeVa
lue, EntityExpandType expandType, Int32& charRefEndPos)
   at System.Xml.XmlTextReaderImpl.ParseText(Int32& startPos, Int32& endPos, Int
32& outOrChars)
   at System.Xml.XmlTextReaderImpl.FinishPartialValue()
   at System.Xml.XmlTextReaderImpl.get_Value()
   at System.Xml.Linq.XContainer.ReadContentFrom(XmlReader r)
   at System.Xml.Linq.XContainer.ReadContentFrom(XmlReader r, LoadOptions o)
   at System.Xml.Linq.XDocument.Load(XmlReader reader, LoadOptions options)
   at System.Xml.Linq.XDocument.Load(String uri, LoadOptions options)
   at BlogMLtoDisqus.Program.Main(String[] args)

C:\Users\Jane>