Fatal error: Uncaught TypeError: Argument 1 passed to App\Module\Site\Controller\Projects::category() must be an instance of App\Model\ProjectCategory, null given in /var/www/sip/app/Module/Site/Controller/Projects.php:14 Stack trace: #0 [internal function]: App\Module\Site\Controller\Projects->category(NULL) #1 /var/www/sip/vendor/pedrilla/light/src/Light/Front.php(391): call_user_func_array(Array, Array) #2 /var/www/sip/www/index.php(7): Light\Front->run() #3 {main} thrown in /var/www/sip/app/Module/Site/Controller/Projects.php on line 14