PHP Fatal error: Uncaught Error: Call to a member function getId() on bool in \classes\install\Upgrade.inc.php:1739

I am trying to upgrade from ojs-2.4.8-5 to ojs-3.2.1-4
PHP 7.4.9
MYSQL 5.7.31

PHP Fatal error: Uncaught Error: Call to a member function getId() on bool in D:\wamp64\www\ojsOldtoNew\classes\install\Upgrade.inc.php:1739

Stack trace:

#0 D:\wamp64\www\ojsOldtoNew\lib\pkp\classes\install\Installer.inc.php(417): Upgrade->convertCommentsToEditor(Object(Upgrade), Array)

#1 D:\wamp64\www\ojsOldtoNew\lib\pkp\classes\install\Installer.inc.php(263): Installer->executeAction(Array)

#2 D:\wamp64\www\ojsOldtoNew\lib\pkp\classes\install\Installer.inc.php(186): Installer->executeInstaller()

#3 D:\wamp64\www\ojsOldtoNew\lib\pkp\classes\install\form\UpgradeForm.inc.php(42): Installer->execute()

#4 D:\wamp64\www\ojsOldtoNew\lib\pkp\pages\install\InstallHandler.inc.php(106): UpgradeForm->execute()

#5 D:\wamp64\www\ojsOldtoNew\lib\pkp\classes\core\PKPRouter.inc.php(391): InstallHandler->installUpgrade(Array, Object(Request))

#6 D:\wamp64\www\ojsOldtoNew\lib\pkp\classes\core\PKPPageRouter.inc.php(231): PKPRouter->_authorizeInitializeAndCallRequest(Array, Object(Request), Array, false)

#7 D:\wamp64\www\ojsOldtoNew\lib\pkp\cl in D:\wamp64\www\ojsOldtoNew\classes\install\Upgrade.inc.php on line 1739