<diagnostics>
    <diagnostic xmlns="http://www.loc.gov/zing/srw/diagnostic/">
        <details>
            <url>http://sru2.visual-library.de/erara_alma_nebis?operation=searchRetrieve&amp;query=dc.title%3Dtest&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=fc6597d100474e3f6f3c9b0b0599d8db191ac383"/><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="216.73.216.41"/><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="dc.title=test"/><param name="recordSchema" value="mods"/></params>
            <traceback>Traceback (most recent call last):
  File "/vls/instance/server/dynamic/vlz/engine2.py", line 270, in searchRetrieve
    return self._searchRetrieve(*args, **kwargs)
  File "/vls/instance/server/dynamic/vlz/engine2.py", line 411, in _searchRetrieve
    recordKey=_recordKey, analyzer=analyzer)
  File "/vls/instance/server/dynamic/vlz/engine2.py", line 158, in _buildSRWResponse
    rendered, rawCatalogData, recordProcresults = renderer.render(record, resultType)
  File "/vls/instance/server/dynamic/vlz/renderers.py", line 132, in render
    rendered = self._render(xmldata)
  File "/vls/instance/server/dynamic/vlz/renderers.py", line 230, in _render
    result = self.performProcessing(tree, PROCTYPES.marcxmlPostproc)
  File "/vls/instance/server/dynamic/vlz/renderers.py", line 112, in performProcessing
    return self.enabled_processors.performProcessing(data, proctype, self.recordKey)
  File "/vls/instance/server/dynamic/vlz/procs/registry.py", line 312, in performProcessing
    res = processors.runProcessors(data=data, proctype_logger=proctype_logger)
  File "/vls/instance/server/dynamic/vlz/procs/registry.py", line 667, in runProcessors
    procresult = procmethod(self, data, logger=procrun_logger, **params)
  File "/vls/instance/server/dynamic/vlz/procs/marc.py", line 769, in query490relatedItemType
    raise LookupError("query490relatedItemType: query '%s' failed" % query)
LookupError: query490relatedItemType: query 'rec.identifier=0397168' failed
</traceback>
            <additional><name>LookupError</name><mdrevision>0</mdrevision><srwPosition>1</srwPosition><area>searchRetrieve</area></additional>
            <exception><class class="LookupError" module="exceptions"/><message>LookupError: query490relatedItemType: query 'rec.identifier=0397168' failed
</message><args arg0="query490relatedItemType: query 'rec.identifier=0397168' failed"/></exception>
        </details>
        <message>An error has occured: LookupError - query490relatedItemType: query 'rec.identifier=0397168' failed</message>
    </diagnostic>
</diagnostics>