During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/local/lib/python3.9/site-packages/gunicorn/workers/sync.py", line 135, in handle
    self.handle_request(listener, req, client, addr)
  File "/usr/local/lib/python3.9/site-packages/gunicorn/workers/sync.py", line 178, in handle_request
    respiter = self.wsgi(environ, resp.start_response)
  File "/usr/local/lib/python3.9/site-packages/django/core/handlers/wsgi.py", line 133, in __call__
    response = self.get_response(request)
  File "/usr/local/lib/python3.9/site-packages/django/core/handlers/base.py", line 130, in get_response
    response = self._middleware_chain(request)
  File "/usr/local/lib/python3.9/site-packages/django/core/handlers/exception.py", line 49, in inner
    response = response_for_exception(request, exc)
  File "/usr/local/lib/python3.9/site-packages/django/core/handlers/exception.py", line 114, in response_for_exception
    response = handle_uncaught_exception(request, get_resolver(get_urlconf()), sys.exc_info())
  File "/usr/local/lib/python3.9/site-packages/django/core/handlers/exception.py", line 152, in handle_uncaught_exception
    callback = resolver.resolve_error_handler(500)
  File "/usr/local/lib/python3.9/site-packages/django/urls/resolvers.py", line 615, in resolve_error_handler
    callback = getattr(self.urlconf_module, 'handler%s' % view_type, None)
  File "/usr/local/lib/python3.9/site-packages/django/utils/functional.py", line 48, in __get__
    res = instance.__dict__[self.name] = self.func(instance)
  File "/usr/local/lib/python3.9/site-packages/django/urls/resolvers.py", line 595, in urlconf_module
    return import_module(self.urlconf_name)
  File "/usr/local/lib/python3.9/importlib/__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1030, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1007, in _find_and_load
  File "<frozen importlib._bootstrap>", line 986, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 680, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 850, in exec_module
  File "<frozen importlib._bootstrap>", line 228, in _call_with_frames_removed
  File "/usr/local/www/haiwen/seafile-server/seahub/seahub/utils/rooturl.py", line 41, in <module>
    url(r'^%s' % settings.SITE_ROOT[1:], include(settings.SITE_ROOT_URLCONF)),
  File "/usr/local/lib/python3.9/site-packages/django/urls/conf.py", line 34, in include
    urlconf_module = import_module(urlconf_module)
  File "/usr/local/lib/python3.9/importlib/__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1030, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1007, in _find_and_load
  File "<frozen importlib._bootstrap>", line 986, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 680, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 850, in exec_module
  File "<frozen importlib._bootstrap>", line 228, in _call_with_frames_removed
  File "/usr/local/www/haiwen/seafile-server/seahub/seahub/urls.py", line 6, in <module>
    from seahub.views.sysadmin import *
  File "/usr/local/www/haiwen/seafile-server/seahub/seahub/views/sysadmin.py", line 86, in <module>
    from seahub.utils.two_factor_auth import has_two_factor_auth
  File "/usr/local/www/haiwen/seafile-server/seahub/seahub/utils/two_factor_auth.py", line 5, in <module>
    from seahub.two_factor.views.login import (
  File "/usr/local/www/haiwen/seafile-server/seahub/seahub/two_factor/views/__init__.py", line 2, in <module>
    from .core import SetupView, BackupTokensView, SetupCompleteView, QRGeneratorView
  File "/usr/local/www/haiwen/seafile-server/seahub/seahub/two_factor/views/core.py", line 35, in <module>
    from seahub.two_factor.views.utils import (class_view_decorator,
  File "/usr/local/www/haiwen/seafile-server/seahub/seahub/two_factor/views/utils.py", line 11, in <module>
    from formtools.wizard.forms import ManagementForm
  File "/usr/local/lib/python3.9/site-packages/formtools/__init__.py", line 2, in <module>
    from pkg_resources import DistributionNotFound, get_distribution
  File "/usr/local/lib/python3.9/site-packages/pkg_resources/__init__.py", line 3260, in <module>
    def _initialize_master_working_set():
  File "/usr/local/lib/python3.9/site-packages/pkg_resources/__init__.py", line 3234, in _call_aside
    f(*args, **kwargs)
  File "/usr/local/lib/python3.9/site-packages/pkg_resources/__init__.py", line 3272, in _initialize_master_working_set
    working_set = WorkingSet._build_master()
  File "/usr/local/lib/python3.9/site-packages/pkg_resources/__init__.py", line 581, in _build_master
    ws.require(__requires__)
  File "/usr/local/lib/python3.9/site-packages/pkg_resources/__init__.py", line 909, in require
    needed = self.resolve(parse_requirements(requirements))
  File "/usr/local/lib/python3.9/site-packages/pkg_resources/__init__.py", line 795, in resolve
    raise DistributionNotFound(req, requirers)
pkg_resources.DistributionNotFound: The 'packaging' distribution was not found and is required by gunicorn
[2023-08-25 17:47:31 +0000] [69917] [INFO] Worker exiting (pid: 69917)
[2023-08-25 17:47:31 +0000] [69942] [INFO] Booting worker with pid: 69942