Fatal error: Could not check compatibility between APP\core\Request::getContext(): ?APP\journal\Journal and PKP\core\PKPRequest::getContext(): ?PKP\context\Context, because class APP\journal\Journal is not available in /var/www/7b3a293a-eef9-4461-8a7f-d909ff583a89/public_html/classes/core/Request.php on line 39