Fatal error: Uncaught TypeError: APP\issue\IssueGalley::setLocale(): Argument #1 ($locale) must be of type string, null given, called in /var/www/html/classes/issue/IssueGalleyDAO.php on line 240 and defined in /var/www/html/classes/issue/IssueGalley.php:84 Stack trace: #0 /var/www/html/classes/issue/IssueGalleyDAO.php(240): APP\issue\IssueGalley->setLocale(NULL) #1 /var/www/html/classes/issue/IssueGalleyDAO.php(152): APP\issue\IssueGalleyDAO->_fromRow(Array) #2 /var/www/html/pages/issue/IssueHandler.php(398): APP\issue\IssueGalleyDAO->getByIssueId(474) #3 /var/www/html/pages/issue/IssueHandler.php(138): APP\pages\issue\IssueHandler::_setupIssueTemplate(Object(APP\core\Request), Object(APP\issue\Issue), Object(APP\journal\Journal)) #4 [internal function]: APP\pages\issue\IssueHandler->view(Array, Object(APP\core\Request)) #5 /var/www/html/lib/pkp/classes/core/PKPRouter.php(327): call_user_func(Array, Array, Object(APP\core\Request)) #6 /var/www/html/lib/pkp/classes/core/PKPPageRouter.php(249): PKP\core\PKPRouter->_authorizeInitializeAndCallRequest(Array, Object(APP\core\Request), Array, false) #7 /var/www/html/lib/pkp/classes/core/Dispatcher.php(157): PKP\core\PKPPageRouter->route(Object(APP\core\Request)) #8 /var/www/html/lib/pkp/classes/core/PKPApplication.php(429): PKP\core\Dispatcher->dispatch(Object(APP\core\Request)) #9 /var/www/html/index.php(21): PKP\core\PKPApplication->execute() #10 {main} thrown in /var/www/html/classes/issue/IssueGalley.php on line 84