Fatal error: Uncaught Error: Using $this when not in object context in /var/www/api/vendor/zendframework/zend-view/test/Helper/Navigation/_files/mvc/views/menu.phtml:2 Stack trace: #0 {main} thrown in /var/www/api/vendor/zendframework/zend-view/test/Helper/Navigation/_files/mvc/views/menu.phtml on line 2