BIP5008
Severity
20 : ErrorMessage
Invalid element name '<insert_0>'.Explanation
An invalid element name found. An XML element name must begin with a letter, an underscore character, '_', or a colon,':' . An XML element name may additionally contain digits and the punctuation characters ( '.', '-', '_' and ':'). Invalid element name: <insert_0>.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 message flow are also consistent with the XML specification.