Cannot list audits

[Min Li]

When I list the audits on the dashboard, the server returned 500, and horizon reported the following error:
2021-05-25 06:34:22.970566 warnings.warn(
2021-05-25 06:34:22.974213 /usr/lib/python3.8/logging/__init__.py:1084: DeprecationWarning: PY_SSIZE_T_CLEAN will be required for '#' formats
2021-05-25 06:34:22.974234 stream.write(msg + self.terminator)
2021-05-25 06:34:22.974240 Internal Server Error: /project/audits/
2021-05-25 06:34:22.974242 Traceback (most recent call last):
2021-05-25 06:34:22.974243 File "/var/lib/openstack/lib/python3.8/site-packages/django/urls/base.py", line 75, in reverse
2021-05-25 06:34:22.974246 extra, resolver = resolver.namespace_dict[ns]
2021-05-25 06:34:22.974248 KeyError: 'audits'
2021-05-25 06:34:22.974249
2021-05-25 06:34:22.974251 During handling of the above exception, another exception occurred:
2021-05-25 06:34:22.974253
2021-05-25 06:34:22.974254 Traceback (most recent call last):
2021-05-25 06:34:22.974255 File "/var/lib/openstack/lib/python3.8/site-packages/django/core/handlers/exception.py", line 34, in inner
2021-05-25 06:34:22.974257 response = get_response(request)
2021-05-25 06:34:22.974259 File "/var/lib/openstack/lib/python3.8/site-packages/django/core/handlers/base.py", line 115, in _get_response
2021-05-25 06:34:22.974260 response = self.process_exception_by_middleware(e, request)
2021-05-25 06:34:22.974262 File "/var/lib/openstack/lib/python3.8/site-packages/django/core/handlers/base.py", line 113, in _get_response
2021-05-25 06:34:22.974264 response = wrapped_callback(request, *callback_args, **callback_kwargs)
2021-05-25 06:34:22.974266 File "/var/lib/openstack/lib/python3.8/site-packages/horizon/decorators.py", line 52, in dec
2021-05-25 06:34:22.974267 return view_func(request, *args, **kwargs)
2021-05-25 06:34:22.974268 File "/var/lib/openstack/lib/python3.8/site-packages/horizon/decorators.py", line 36, in dec
2021-05-25 06:34:22.974270 return view_func(request, *args, **kwargs)
2021-05-25 06:34:22.974271 File "/var/lib/openstack/lib/python3.8/site-packages/horizon/decorators.py", line 36, in dec
2021-05-25 06:34:22.974273 return view_func(request, *args, **kwargs)
2021-05-25 06:34:22.974274 File "/var/lib/openstack/lib/python3.8/site-packages/horizon/decorators.py", line 113, in dec
2021-05-25 06:34:22.974276 return view_func(request, *args, **kwargs)
2021-05-25 06:34:22.974277 File "/var/lib/openstack/lib/python3.8/site-packages/django/views/generic/base.py", line 71, in view
2021-05-25 06:34:22.974279 return self.dispatch(request, *args, **kwargs)
2021-05-25 06:34:22.974280 File "/var/lib/openstack/lib/python3.8/site-packages/django/views/generic/base.py", line 97, in dispatch
2021-05-25 06:34:22.974281 return handler(request, *args, **kwargs)
2021-05-25 06:34:22.974283 File "/var/lib/openstack/lib/python3.8/site-packages/horizon/tables/views.py", line 226, in get
2021-05-25 06:34:22.974284 context = self.get_context_data(**kwargs)
2021-05-25 06:34:22.974286 File "/var/lib/openstack/lib/python3.8/site-packages/watcher_dashboard/content/audits/views.py", line 46, in get_context_data
2021-05-25 06:34:22.974288 'url': reverse('horizon:admin:audits:create'),
2021-05-25 06:34:22.974290 File "/var/lib/openstack/lib/python3.8/site-packages/django/urls/base.py", line 81, in reverse
2021-05-25 06:34:22.974293 raise NoReverseMatch(
2021-05-25 06:34:22.974295 django.urls.exceptions.NoReverseMatch: 'audits' is not a registered namespace inside 'horizon:admin'
100.101.89.152 - - [25/May/2021:06:34:19 +0000] "GET /project/audits/ HTTP/1.1" 500 1820