BIP5006
Severity
20 : Error
Message
Duplicate XML or DOCTYPE declaration of element '<insert_0>'.
Explanation
The element <insert_0> has been defined more than once as type xmlXmlDecl or xmlDocTypeDecl. Only one element may be defined as one of these types.
Response
Check that the XML message being passed in is a well-formed XML message that adheres to the XML specification, and that the modifications being made to the message in the messageflow are also consistent with the XML specification.