traceback

Traceback (most recent call last):
  File "/usr/local/lib/python3.8/site-packages/kombu/utils/objects.py", line 42, in __get__
    return obj.__dict__[self.__name__]

During handling of the above exception ('backend'), another exception occurred:
  File "/usr/local/lib/python3.8/site-packages/django/core/handlers/exception.py", line 34, in inner
    response = get_response(request)
  File "/usr/local/lib/python3.8/site-packages/django/core/handlers/base.py", line 115, in _get_response
    response = self.process_exception_by_middleware(e, request)
  File "/usr/local/lib/python3.8/site-packages/django/core/handlers/base.py", line 113, in _get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
  File "/usr/local/lib/python3.8/contextlib.py", line 75, in inner
    return func(*args, **kwds)
  File "/usr/local/lib/python3.8/site-packages/django/contrib/admin/options.py", line 607, in wrapper
    return self.admin_site.admin_view(view)(*args, **kwargs)
  File "/usr/local/lib/python3.8/site-packages/django/utils/decorators.py", line 130, in _wrapped_view
    response = view_func(request, *args, **kwargs)
  File "/usr/local/lib/python3.8/site-packages/django/views/decorators/cache.py", line 44, in _wrapped_view_func
    response = view_func(request, *args, **kwargs)
  File "/usr/local/lib/python3.8/site-packages/django/contrib/admin/sites.py", line 231, in inner
    return view(request, *args, **kwargs)
  File "/usr/local/lib/python3.8/site-packages/django_celery_beat/admin.py", line 157, in changelist_view
    return super(PeriodicTaskAdmin, self).changelist_view(
  File "/usr/local/lib/python3.8/site-packages/django/utils/decorators.py", line 43, in _wrapper
    return bound_method(*args, **kwargs)
  File "/usr/local/lib/python3.8/site-packages/django/utils/decorators.py", line 130, in _wrapped_view
    response = view_func(request, *args, **kwargs)
  File "/usr/local/lib/python3.8/site-packages/django/contrib/admin/options.py", line 1704, in changelist_view
    response = self.response_action(request, queryset=cl.get_queryset(request))
  File "/usr/local/lib/python3.8/site-packages/django/contrib/admin/options.py", line 1390, in response_action
    response = func(self, request, queryset)
  File "/usr/local/lib/python3.8/site-packages/django_celery_beat/admin.py", line 227, in run_tasks
    task_ids = [task.apply_async(args=args, kwargs=kwargs, queue=queue)
  File "/usr/local/lib/python3.8/site-packages/django_celery_beat/admin.py", line 229, in <listcomp>
    else task.apply_async(args=args, kwargs=kwargs)
  File "/usr/local/lib/python3.8/site-packages/celery/app/task.py", line 564, in apply_async
    return app.send_task(
  File "/usr/local/lib/python3.8/site-packages/celery/app/base.py", line 779, in send_task
    self.backend.on_task_call(P, task_id)
  File "/usr/local/lib/python3.8/site-packages/kombu/utils/objects.py", line 44, in __get__
    value = obj.__dict__[self.__name__] = self.__get(obj)
  File "/usr/local/lib/python3.8/site-packages/celery/app/base.py", line 1232, in backend
    return self._get_backend()
  File "/usr/local/lib/python3.8/site-packages/celery/app/base.py", line 947, in _get_backend
    backend, url = backends.by_url(
  File "/usr/local/lib/python3.8/site-packages/celery/app/backends.py", line 74, in by_url
    return by_name(backend, loader), url
  File "/usr/local/lib/python3.8/site-packages/celery/app/backends.py", line 54, in by_name
    cls = symbol_by_name(backend, aliases)
  File "/usr/local/lib/python3.8/site-packages/kombu/utils/imports.py", line 57, in symbol_by_name
    module = imp(module_name, package=package, **kwargs)
  File "/usr/local/lib/python3.8/importlib/__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1014, in _gcd_import
    <source code not available>
  File "<frozen importlib._bootstrap>", line 991, in _find_and_load
    <source code not available>
  File "<frozen importlib._bootstrap>", line 973, in _find_and_load_unlocked
    <source code not available>

Exception Type: ModuleNotFoundError at /admin/django_celery_beat/periodictask/
Exception Value: No module named 'sqs'