<diagnostics>
    <diagnostic xmlns="http://www.loc.gov/zing/srw/diagnostic/">
        <uri>info:srw/diagnostic/1/1</uri>
        <details>
            <url>http://sru2.visual-library.de/cern?operation=searchRetrieve&amp;query=rec.identifier%3D12345&amp;recordSchema=mods</url>
            <headers><header name="ACCEPT" value="*/*"/><header name="ACCEPT-ENCODING" value="gzip, br, zstd, deflate"/><header name="CONNECTION" value="Keep-Alive"/><header name="HOST" value="sru2.visual-library.de"/><header name="Remote-Addr" value="192.168.1.13"/><header name="USER-AGENT" value="Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)"/><header name="X-FORWARDED-FOR" value="216.73.217.172"/><header name="X-FORWARDED-HOST" value="sru2.visual-library.de"/><header name="X-FORWARDED-SERVER" value="sru2.visual-library.de"/></headers>
            <params><param name="operation" value="searchRetrieve"/><param name="query" value="rec.identifier=12345"/><param name="recordSchema" value="mods"/></params>
            <additional><name>InvalidXmlRpcResponse</name><hint>Received unparsable xml from XmlRpc interface</hint><exception>XMLSyntaxError: StartTag: invalid element name, line 1, column 2 (line 1)
</exception><error_log>&lt;string&gt;:1:2:FATAL:PARSER:ERR_NAME_REQUIRED: StartTag: invalid element name
&lt;string&gt;:1:2:FATAL:PARSER:ERR_DOCUMENT_END: Extra content at the end of the document</error_log><cql>rec.identifier=12345</cql><remoteUrl>http://cds.cern.ch/record/12345/export/xm</remoteUrl><provider>cern</provider><protocol>XML-RPC</protocol><mdrevision>0</mdrevision><host>http://cds.cern.ch</host><database>/record/%(identifier)s/export/xm</database><recordSyntax>MARCXML</recordSyntax><targetRecordSyntax>MODS</targetRecordSyntax><area>searchRetrieve.fetchRecords</area></additional>
            </details>
        <message>An error has occured: InvalidXmlRpcResponse [XMLSyntaxError: StartTag: invalid element name, line 1, column 2 (line 1)
]</message>
    </diagnostic>
</diagnostics>