$ python ./scripts/docs.py live ja
ERROR:mkdocs.commands.build:Error reading page 'fastapi-people.md': 'sponsors' is undefined
Traceback (most recent call last):
  File "./scripts/docs.py", line 449, in <module>
    app()
  File "/home/wakabame/fastapi/env/lib/python3.8/site-packages/typer/main.py", line 214, in __call__
    return get_command(self)(*args, **kwargs)
  File "/home/wakabame/fastapi/env/lib/python3.8/site-packages/click/core.py", line 829, in __call__
    return self.main(*args, **kwargs)
  File "/home/wakabame/fastapi/env/lib/python3.8/site-packages/click/core.py", line 782, in main
    rv = self.invoke(ctx)
  File "/home/wakabame/fastapi/env/lib/python3.8/site-packages/click/core.py", line 1259, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/home/wakabame/fastapi/env/lib/python3.8/site-packages/click/core.py", line 1066, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/home/wakabame/fastapi/env/lib/python3.8/site-packages/click/core.py", line 610, in invoke
    return callback(*args, **kwargs)
  File "/home/wakabame/fastapi/env/lib/python3.8/site-packages/typer/main.py", line 497, in wrapper
    return callback(**use_params)  # type: ignore
  File "./scripts/docs.py", line 357, in live
    mkdocs.commands.serve.serve(dev_addr="127.0.0.1:8008")
  File "/home/wakabame/fastapi/env/lib/python3.8/site-packages/mkdocs/commands/serve.py", line 54, in serve
    config = builder()
  File "/home/wakabame/fastapi/env/lib/python3.8/site-packages/mkdocs/commands/serve.py", line 49, in builder
    build(config, live_server=live_server, dirty=dirty)
  File "/home/wakabame/fastapi/env/lib/python3.8/site-packages/mkdocs/commands/build.py", line 292, in build
    _populate_page(file.page, config, files, dirty)
  File "/home/wakabame/fastapi/env/lib/python3.8/site-packages/mkdocs/commands/build.py", line 170, in _populate_page
    page.markdown = config['plugins'].run_event(
  File "/home/wakabame/fastapi/env/lib/python3.8/site-packages/mkdocs/plugins.py", line 102, in run_event
    result = method(item, **kwargs)
  File "/home/wakabame/fastapi/env/lib/python3.8/site-packages/markdownextradata/plugin.py", line 99, in on_page_markdown
    return self.apply_template(markdown)
  File "/home/wakabame/fastapi/env/lib/python3.8/site-packages/markdownextradata/plugin.py", line 111, in apply_template
    return md_template.render({**self.mkdocsConfig, **self.mkdocsConfig.get("extra")})
  File "/home/wakabame/fastapi/env/lib/python3.8/site-packages/jinja2/environment.py", line 1291, in render
    self.environment.handle_exception()
  File "/home/wakabame/fastapi/env/lib/python3.8/site-packages/jinja2/environment.py", line 925, in handle_exception
    raise rewrite_traceback_stack(source=source)
  File "<template>", line 118, in top-level template code
  File "/home/wakabame/fastapi/env/lib/python3.8/site-packages/jinja2/environment.py", line 474, in getattr
    return getattr(obj, attribute)
jinja2.exceptions.UndefinedError: 'sponsors' is undefined

$ python ./scripts/docs.py live az
ERROR:mkdocs.config:Config value: 'docs_dir'. Error: The path /home/wakabame/fastapi/docs/az/docs isn't an existing directory.
Aborted with 1 Configuration Errors!