Both above are set to place they need to be worked on with styling (add css).
Create error pages for 304 Not Modified, 400 Bad Request, 401 Unauthorized,403 Forbidden,404 Not Found, 405 Method Not Allowed, 429 Too Many Requests, 500 Internal Server Error, 501 Not Implemented, 503 Service Unavailable.
(this issue might result in more issues)