Copyright Holder (Author) & Copyright Year do not appear

Can anyone tell me why Copyright Holder (Author) & Copyright Year do not appear??
(OJS version: 3.1.2.4)

1-Publication Permissions


2-Permissions

3-Article details

	// Copyright and license info
	$templateMgr->assign(array(
		'copyright' => $journal->getLocalizedSetting('copyrightNotice'),
	));
	if ($article->getLicenseURL()) $templateMgr->assign(array(
		'licenseUrl' => $article->getLicenseURL(),
		'ccLicenseBadge' => Application::getCCLicenseBadge($article->getLicenseURL()),
		'copyrightHolder' => $article->getLocalizedCopyrightHolder(),
		'copyrightYear' => $article->getCopyrightYear(),
	));

Any idea about the problem?