Fatal error555

Uncaught exception :Twig\Error\LoaderError

message :Unable to find template "404/index.html" (looked into: ../App/Views).

Strack track :

#0 /home/xn12cbpb2eb3ah9n/public_html/vendor/twig/twig/src/Loader/FilesystemLoader.php(150): Twig\Loader\FilesystemLoader->findTemplate('404/index.html')
#1 /home/xn12cbpb2eb3ah9n/public_html/vendor/twig/twig/src/Environment.php(299): Twig\Loader\FilesystemLoader->getCacheKey('404/index.html')
#2 /home/xn12cbpb2eb3ah9n/public_html/vendor/twig/twig/src/Environment.php(381): Twig\Environment->getTemplateClass('404/index.html')
#3 /home/xn12cbpb2eb3ah9n/public_html/vendor/twig/twig/src/Environment.php(359): Twig\Environment->loadTemplate('404/index.html')
#4 /home/xn12cbpb2eb3ah9n/public_html/vendor/twig/twig/src/Environment.php(318): Twig\Environment->load('404/index.html')
#5 /home/xn12cbpb2eb3ah9n/public_html/Core/Views.php(151): Twig\Environment->render('404/index.html', Array)
#6 /home/xn12cbpb2eb3ah9n/public_html/Core/Router.php(91): Core\Views::renderTemplate('404/index.html')
#7 /home/xn12cbpb2eb3ah9n/public_html/public/index.php(92): Core\Router->Dispatch('category/75/\xE0\xB9\x81...')
#8 {main}

Throw in : /home/xn12cbpb2eb3ah9n/public_html/vendor/twig/twig/src/Loader/FilesystemLoader.php'on line'250