Fatal error: Uncaught TypeError: APP\issue\IssueGalley::setLocale(): Argument #1 ($locale) must be of type string, null given, called in /var/www/vst/ojs-3.5.0-1/classes/issue/IssueGalleyDAO.php on line 240 and defined in /var/www/vst/ojs-3.5.0-1/classes/issue/IssueGalley.php:84 Stack trace: #0 /var/www/vst/ojs-3.5.0-1/classes/issue/IssueGalleyDAO.php(240): APP\issue\IssueGalley->setLocale() #1 /var/www/vst/ojs-3.5.0-1/classes/issue/IssueGalleyDAO.php(152): APP\issue\IssueGalleyDAO->_fromRow() #2 /var/www/vst/ojs-3.5.0-1/pages/issue/IssueHandler.php(400): APP\issue\IssueGalleyDAO->getByIssueId() #3 /var/www/vst/ojs-3.5.0-1/pages/issue/IssueHandler.php(138): APP\pages\issue\IssueHandler::_setupIssueTemplate() #4 [internal function]: APP\pages\issue\IssueHandler->view() #5 /var/www/vst/ojs-3.5.0-1/lib/pkp/classes/core/PKPRouter.php(327): call_user_func() #6 /var/www/vst/ojs-3.5.0-1/lib/pkp/classes/core/PKPPageRouter.php(249): PKP\core\PKPRouter->_authorizeInitializeAndCallRequest() #7 /var/www/vst/ojs-3.5.0-1/lib/pkp/classes/core/Dispatcher.php(157): PKP\core\PKPPageRouter->route() #8 /var/www/vst/ojs-3.5.0-1/lib/pkp/classes/core/PKPApplication.php(426): PKP\core\Dispatcher->dispatch() #9 /var/www/vst/ojs-3.5.0-1/pages.php(20): PKP\core\PKPApplication->execute() #10 /var/www/vst/ojs-3.5.0-1/index.php(41): include('...') #11 {main} thrown in /var/www/vst/ojs-3.5.0-1/classes/issue/IssueGalley.php on line 84