Fatal error: Uncaught Twig_Error_Loader: Unable to find template "404.html.twig" (looked into: /templates/en). in /vendor/twig/twig/lib/Twig/Loader/Filesystem.php:226 Stack trace: #0 /vendor/twig/twig/lib/Twig/Loader/Filesystem.php(143): Twig_Loader_Filesystem->findTemplate() #1 /vendor/twig/twig/lib/Twig/Environment.php(269): Twig_Loader_Filesystem->getCacheKey() #2 /vendor/twig/twig/lib/Twig/Environment.php(345): Twig_Environment->getTemplateClass() #3 /vendor/twig/twig/lib/Twig/Environment.php(323): Twig_Environment->loadTemplate() #4 /index.php(92): Twig_Environment->load() #5 {main} thrown in /vendor/twig/twig/lib/Twig/Loader/Filesystem.php on line 226