( ! ) Fatal error: Uncaught TypeError: CTFF\WebApplication\Navigation\NavigationElement::hasSubNavigationKey(): Argument #1 ($navigationKey) must be of type string, null given, called in /var/www/app/vendor/twig/twig/src/Extension/CoreExtension.php on line 1919 and defined in /var/www/app/src/WebApplication/Navigation/NavigationElement.php:67 Stack trace: #0 /var/www/app/vendor/twig/twig/src/Extension/CoreExtension.php(1919): CTFF\WebApplication\Navigation\NavigationElement->hasSubNavigationKey(NULL) #1 /var/www/app/vendor/twig/twig/src/Environment.php(420) : eval()'d code(61): Twig\Extension\CoreExtension::getAttribute(Object(Twig\Environment), Object(Twig\Source), Object(CTFF\WebApplication\Navigation\NavigationElement), 'hasSubNavigatio...', Array, 'method', false, false, false, 11) #2 /var/www/app/vendor/twig/twig/src/Template.php(402): __TwigTemplate_0baf536cb556bbc14a16487a107e6ca1->doDisplay(Array, Array) #3 /var/www/app/vendor/twig/twig/src/Environment.php(420) : eval()'d code(108): Twig\Template->yield(Array) #4 /var/www/app/vendor/twig/twig/src/Template.php(402): __TwigTemplate_c163f0dc287eb2c9bad7acb1c8016fb8->doDisplay(Array, Array) #5 /var/www/app/vendor/twig/twig/src/Environment.php(420) : eval()'d code(47): Twig\Template->yield(Array, Array) #6 /var/www/app/vendor/twig/twig/src/Template.php(402): __TwigTemplate_7ba7e97df9205fba8c5eaa8fc167e75b->doDisplay(Array, Array) #7 /var/www/app/vendor/twig/twig/src/Template.php(358): Twig\Template->yield(Array, Array) #8 /var/www/app/vendor/twig/twig/src/Template.php(373): Twig\Template->display(Array) #9 /var/www/app/vendor/twig/twig/src/TemplateWrapper.php(51): Twig\Template->render(Array) #10 /var/www/app/vendor/twig/twig/src/Environment.php(333): Twig\TemplateWrapper->render(Array) #11 /var/www/app/src/Web/Router/TemplatedResponse.php(34): Twig\Environment->render('notfound.twig', Array) #12 /var/www/app/public/index.php(113): CTFF\Web\Router\TemplatedResponse->output() #13 {main} Next Twig\Error\RuntimeError: An exception has been thrown during the rendering of a template ("CTFF\WebApplication\Navigation\NavigationElement::hasSubNavigationKey(): Argument #1 ($navigationKey) must be of type string, null given, called in /var/www/app/vendor/twig/twig/src/Extension/CoreExtension.php on line 1919") in "inc/nav.twig" at line 11. in /var/www/app/assets/templates/inc/nav.twig on line 11
( ! ) Twig\Error\RuntimeError: An exception has been thrown during the rendering of a template ("CTFF\WebApplication\Navigation\NavigationElement::hasSubNavigationKey(): Argument #1 ($navigationKey) must be of type string, null given, called in /var/www/app/vendor/twig/twig/src/Extension/CoreExtension.php on line 1919") in "inc/nav.twig" at line 11. in /var/www/app/assets/templates/inc/nav.twig on line 11
Call Stack
#	Time	Memory	Function	Location
1	0.0001	426560	{main}()	.../index.php:0
2	0.0013	520736	CTFF\WebApplication\NotFound\NotFoundResponse->output()	.../index.php:113
3	0.0013	520832	Twig\Environment->render()	.../TemplatedResponse.php:34
4	0.0039	626192	Twig\TemplateWrapper->render()	.../Environment.php:333
5	0.0039	626192	__TwigTemplate_7ba7e97df9205fba8c5eaa8fc167e75b->render()	.../TemplateWrapper.php:51
6	0.0039	643344	__TwigTemplate_7ba7e97df9205fba8c5eaa8fc167e75b->display()	.../Template.php:373
7	0.0140	884920	__TwigTemplate_0baf536cb556bbc14a16487a107e6ca1->yield()	.../Template.php:358