Este é o erro

UndefinedError
jinja2.exceptions.UndefinedError: 'url_form' is undefined

Traceback (most recent call last)
File "C:\Users\Meu Computador\PycharmProjects\jogoteca\venv\Lib\site-packages\flask\app.py", line 2091, in __call__
return self.wsgi_app(environ, start_response)
       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\Meu Computador\PycharmProjects\jogoteca\venv\Lib\site-packages\flask\app.py", line 2076, in wsgi_app
response = self.handle_exception(e)
           ^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\Meu Computador\PycharmProjects\jogoteca\venv\Lib\site-packages\flask\app.py", line 2073, in wsgi_app
response = self.full_dispatch_request()
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\Meu Computador\PycharmProjects\jogoteca\venv\Lib\site-packages\flask\app.py", line 1518, in full_dispatch_request
rv = self.handle_user_exception(e)
     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\Meu Computador\PycharmProjects\jogoteca\venv\Lib\site-packages\flask\app.py", line 1516, in full_dispatch_request
rv = self.dispatch_request()
     ^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\Meu Computador\PycharmProjects\jogoteca\venv\Lib\site-packages\flask\app.py", line 1502, in dispatch_request
return self.ensure_sync(self.view_functions[rule.endpoint])(**req.view_args)
       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\Meu Computador\PycharmProjects\jogoteca\jogoteca.py", line 40, in login
return render_template('login.html', proxima=proxima)
       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\Meu Computador\PycharmProjects\jogoteca\venv\Lib\site-packages\flask\templating.py", line 147, in render_template
return _render(
       
File "C:\Users\Meu Computador\PycharmProjects\jogoteca\venv\Lib\site-packages\flask\templating.py", line 128, in _render
rv = template.render(context)
     ^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\Meu Computador\PycharmProjects\jogoteca\venv\Lib\site-packages\jinja2\environment.py", line 1301, in render
self.environment.handle_exception()
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\Meu Computador\PycharmProjects\jogoteca\venv\Lib\site-packages\jinja2\environment.py", line 936, in handle_exception
raise rewrite_traceback_stack(source=source)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\Meu Computador\PycharmProjects\jogoteca\templates\login.html", line 23, in top-level template code
<form method="POST" action="{{ url_form('autenticar') }}">
File "C:\Users\Meu Computador\PycharmProjects\jogoteca\venv\Lib\site-packages\jinja2\utils.py", line 83, in from_obj
if hasattr(obj, "jinja_pass_arg"):
   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
jinja2.exceptions.UndefinedError: 'url_form' is undefined
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