Fatal error: Uncaught Error: Call to a member function getTagName() on null in /home/public/includes/classes/org/active-link/xml/XML.php:504
Stack trace:
#0 /home/public/includes/modsxml.inc.php(274): XML->setTagAttribute('version', '3.2')
#1 /home/public/includes/modsxml.inc.php(203): modsRecord(Array)
#2 /home/public/includes/execute.inc.php(80): modsCollection(Object(mysqli_result))
#3 /home/public/export/bibutils/export_xml2bib.php(36): exportBibutils(Object(mysqli_result), 'xml2bib')
#4 /home/public/search.php(1758): exportRecords(Object(mysqli_result), '', '5', '', 'Export')
#5 /home/public/search.php(586): generateExport(Object(mysqli_result), '', '5', 'BibTeX', 'file', '', 'Export', '', 0)
#6 {main}
thrown in /home/public/includes/classes/org/active-link/xml/XML.php on line 504