Oracle Error ORA-31606: XML context number does not match any previously allocated context

Oracle Error Message

ORA-31606: XML context number does not match any previously allocated context

Reason for the Error

A method in package UTL_XML was called with an invalid XML context handle. All handles must have previously been allocated by UTL_XML.XMLINIT.

Solution

Always call XMLINIT before any other methods in pkg. UTL_XML.