Warning: array_key_exists() expects parameter 2 to be array, string given in /var/www/live/library/Cube/Navigation/AbstractContainer.php on line 149

Fatal error: Uncaught InvalidArgumentException: ' ' must be an instance of Cube\Navigation\Page\AbstractPage, Traversable, or an array in /var/www/live/library/Cube/Navigation/AbstractContainer.php:179 Stack trace: #0 /var/www/live/library/Cube/Navigation/AbstractContainer.php(152): Cube\Navigation\AbstractContainer->addPage('\n ') #1 /var/www/live/library/Cube/Navigation/AbstractContainer.php(111): Cube\Navigation\AbstractContainer->addPages(Array) #2 /var/www/live/library/Cube/Navigation/Page/AbstractPage.php(482): Cube\Navigation\AbstractContainer->setPages(Array) #3 /var/www/live/library/Cube/Navigation/Page/AbstractPage.php(502): Cube\Navigation\Page\AbstractPage->set('pages', Array) #4 /var/www/live/library/Cube/Navigation/Page/AbstractPage.php(142): Cube\Navigation\Page\AbstractPage->setOptions(Array) #5 /var/www/live/library/Cube/Navigation/Page/AbstractPage.php(126): Cube\Navigation\Page\AbstractPage->__construct(Array) #6 /var/www/live/library/Cube/Navigation/AbstractContainer.php(183): Cube\Navig in /var/www/live/library/Cube/Navigation/AbstractContainer.php on line 179