Fatal error: Uncaught Error: Class "SimpleXMLElement" not found in /home/journal/public_html/plugins/generic/citationStyleLanguage/lib/vendor/seboettg/citeproc-php/src/Locale/Locale.php:60 Stack trace: #0 /home/journal/public_html/plugins/generic/citationStyleLanguage/lib/vendor/seboettg/citeproc-php/src/CiteProc.php(209): Seboettg\CiteProc\Locale\Locale->__construct() #1 /home/journal/public_html/plugins/generic/citationStyleLanguage/lib/vendor/seboettg/citeproc-php/src/CiteProc.php(168): Seboettg\CiteProc\CiteProc->init() #2 /home/journal/public_html/plugins/generic/citationStyleLanguage/CitationStyleLanguagePlugin.inc.php(423): Seboettg\CiteProc\CiteProc->render() #3 /home/journal/public_html/plugins/generic/citationStyleLanguage/CitationStyleLanguagePlugin.inc.php(277): CitationStyleLanguagePlugin->getCitation() #4 /home/journal/public_html/lib/pkp/classes/plugins/HookRegistry.inc.php(107): CitationStyleLanguagePlugin->getArticleTemplateData() #5 /home/journal/public_html/pages/article/ArticleHandler.inc.php(319): HookRegistry::call() #6 /home/journal/public_html/lib/pkp/classes/core/PKPRouter.inc.php(397): ArticleHandler->view() #7 /home/journal/public_html/lib/pkp/classes/core/PKPPageRouter.inc.php(246): PKPRouter->_authorizeInitializeAndCallRequest() #8 /home/journal/public_html/lib/pkp/classes/core/Dispatcher.inc.php(144): PKPPageRouter->route() #9 /home/journal/public_html/lib/pkp/classes/core/PKPApplication.inc.php(360): Dispatcher->dispatch() #10 /home/journal/public_html/index.php(68): PKPApplication->execute() #11 {main} thrown in /home/journal/public_html/plugins/generic/citationStyleLanguage/lib/vendor/seboettg/citeproc-php/src/Locale/Locale.php on line 60