Does anybody know why the error message in UFT logs cannot read root in utt.config.LastQcConnection.xml is appearing?

Here is logs

2016-11-17 08:06:22,434 UTT [ 1] ERROR XmlConfiguration: Failed to load xml file ‘C:\\Users\\\\AppData\\Local\\HP\\UFT\\utt.config.LastQcConnection.xml’.
System.Xml.XmlException: Root element is missing.
at System.Xml.XmlTextReaderImpl.Throw(Exception e)
at System.Xml.XmlTextReaderImpl.ParseDocumentContent()
at System.Xml.XmlTextReaderImpl.Read()
at System.Xml.XmlLoader.Load(XmlDocument doc, XmlReader reader, Boolean preserveWhitespace)
at HP.Utt.Common.Config.XmlConfiguration.GetXmlDocument()
at System.Xml.XmlDocument.Load(String filename)
at System.Xml.XmlDocument.Load(XmlReader reader)