I want to do whatever is written here
Ensure that your 404 template works
Note that the FlatpageFallbackMiddleware only steps in once another view has successfully produced a 404 response. If another view or middleware class attempts to produce a 404 but ends up raising an exception instead (such as a TemplateDoesNotExist exception if your site does not have an appropriate template to use for HTTP 404 responses), the response will become an HTTP 500 (“Internal Server Error”) and the FlatpageFallbackMiddleware will not attempt to serve a flat page.
Can anyone tell me what thing i need to do for making the 404 template