Warning: Undefined array key "required" in /home/jlstuedu/public_html/lib/pkp/classes/submission/GenreDAO.php on line 251

Fatal error: Uncaught TypeError: PKP\submission\Genre::setRequired(): Argument #1 ($required) must be of type bool, null given, called in /home/jlstuedu/public_html/lib/pkp/classes/submission/GenreDAO.php on line 251 and defined in /home/jlstuedu/public_html/lib/pkp/classes/submission/Genre.php:213 Stack trace: #0 /home/jlstuedu/public_html/lib/pkp/classes/submission/GenreDAO.php(251): PKP\submission\Genre->setRequired(NULL) #1 /home/jlstuedu/public_html/lib/pkp/classes/db/DAOResultFactory.php(135): PKP\submission\GenreDAO->_fromRow(Array) #2 /home/jlstuedu/public_html/lib/pkp/classes/db/DAOResultFactory.php(233): PKP\db\DAOResultFactory->next() #3 /home/jlstuedu/public_html/pages/issue/IssueHandler.php(347): PKP\db\DAOResultFactory->toArray() #4 /home/jlstuedu/public_html/pages/issue/IssueHandler.php(132): APP\pages\issue\IssueHandler::_setupIssueTemplate(Object(APP\core\Request), Object(APP\issue\Issue), false) #5 [internal function]: APP\pages\issue\IssueHandler->view(Array, Object(APP\core\Request)) #6 /home/jlstuedu/public_html/lib/pkp/classes/core/PKPRouter.php(334): call_user_func(Array, Array, Object(APP\core\Request)) #7 /home/jlstuedu/public_html/lib/pkp/classes/core/PKPPageRouter.php(278): PKP\core\PKPRouter->_authorizeInitializeAndCallRequest(Array, Object(APP\core\Request), Array, false) #8 /home/jlstuedu/public_html/lib/pkp/classes/core/Dispatcher.php(165): PKP\core\PKPPageRouter->route(Object(APP\core\Request)) #9 /home/jlstuedu/public_html/lib/pkp/classes/core/PKPApplication.php(395): PKP\core\Dispatcher->dispatch(Object(APP\core\Request)) #10 /home/jlstuedu/public_html/index.php(21): PKP\core\PKPApplication->execute() #11 {main} thrown in /home/jlstuedu/public_html/lib/pkp/classes/submission/Genre.php on line 213