<diagnostics>
    <diagnostic xmlns="http://www.loc.gov/zing/srw/diagnostic/">
        <uri>info:srw/diagnostic/1/16</uri>
        <details>
            <url>http://sru2.visual-library.de/hebis-xmlrpc-epflicht?operation=searchRetrieve&amp;query=bib.personalName%3Dstetter&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="COOKIE" value="session_id=059d2abce926596d44d55afd306e2985b349f300"/><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="216.73.216.81"/><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="bib.personalName=stetter"/><param name="recordSchema" value="mods"/></params>
            <additional><name>UnsupportedIndex</name><hint>Unsupported index</hint><msg>bib.personalName not found in configured GET or PATHINFO params - we have: get.rec.urn-&gt;urn, get.rec.identifier-&gt;ppn</msg><cql>bib.personalName=stetter</cql><mapping>get.rec.urn-&gt;urn, get.rec.identifier-&gt;ppn</mapping><provider>hebis-xmlrpc-epflicht</provider><protocol>XML-RPC</protocol><mdrevision>0</mdrevision><host>http://hebis.rz.uni-frankfurt.de</host><port>80</port><database>HEBCGI/dataExportXML.ksh</database><recordSyntax>PICA</recordSyntax><targetRecordSyntax>MODS</targetRecordSyntax><area>searchRetrieve.fetchRecords</area></additional>
            </details>
        <message>An error has occured: UnsupportedIndex - bib.personalName not found in configured GET or PATHINFO params - we have: get.rec.urn-&gt;urn, get.rec.identifier-&gt;ppn</message>
    </diagnostic>
</diagnostics>