Fatal error: Uncaught Symfony\Component\Debug\Exception\FatalThrowableError: Call to a member function getId() on null in /var/www/steinbeis-plus-akademie.de/pimcore/models/Document.php:896
Stack trace:
#0 /var/www/steinbeis-plus-akademie.de/pimcore/models/Document/Page.php(260): Pimcore\Model\Document->getFullPath()
#1 /var/www/steinbeis-plus-akademie.de/src/FoxHabbit/SteinbeisBundle/Controller/TemplateController.php(45): Pimcore\Model\Document\Page->getFullPath()
#2 /var/www/steinbeis-plus-akademie.de/src/FoxHabbit/SteinbeisBundle/Controller/TemplateController.php(86): FoxHabbit\SteinbeisBundle\Controller\TemplateController->buildLanguageLinks()
#3 /var/www/steinbeis-plus-akademie.de/vendor/symfony/symfony/src/Symfony/Component/HttpKernel/HttpKernel.php(151): FoxHabbit\SteinbeisBundle\Controller\TemplateController->templateAction(Object(Symfony\Component\HttpFoundation\Request), Object(Pimcore\Config\Config))
#4 /var/www/steinbeis-plus-akademie.de/vendor/symfony/symfony/src/Symfony/Component/HttpKernel/HttpKernel.php(68 in /var/www/steinbeis-plus-akademie.de/pimcore/models/Document.php on line 896