We have IPCCX 4.5 system, but we are unable to make changes. We can't remove applications, scripts, prompts etc.
The error is:
com.cisco.app.ApplicationException: can not acquire ClusterMutex
javax.xml.bind.UnmarshalException: Document root element is missing. - with linked exception: [org.xml.sax.SAXParseException: Document root element is missing.]