ZADD requires an equal number of values and scores

[darkpixel]

When attempting to schedule a job through Django's admin site, I get the following traceback:

File "/local/lib/python3.6/site-packages/django/core/handlers/exception.py" in inner
  34.             response = get_response(request)

File "/local/lib/python3.6/site-packages/django/core/handlers/base.py" in _get_response
  126.                 response = self.process_exception_by_middleware(e, request)

File "/local/lib/python3.6/site-packages/django/core/handlers/base.py" in _get_response
  124.                 response = wrapped_callback(request, *callback_args, **callback_kwargs)

File "/local/lib/python3.6/site-packages/django/contrib/admin/options.py" in wrapper
  604.                 return self.admin_site.admin_view(view)(*args, **kwargs)

File "/local/lib/python3.6/site-packages/django/utils/decorators.py" in _wrapped_view
  142.                     response = view_func(request, *args, **kwargs)

File "/local/lib/python3.6/site-packages/django/views/decorators/cache.py" in _wrapped_view_func
  44.         response = view_func(request, *args, **kwargs)

File "/local/lib/python3.6/site-packages/django/contrib/admin/sites.py" in inner
  223.             return view(request, *args, **kwargs)

File "/local/lib/python3.6/site-packages/django/contrib/admin/options.py" in add_view
  1636.         return self.changeform_view(request, None, form_url, extra_context)

File "/local/lib/python3.6/site-packages/django/utils/decorators.py" in _wrapper
  45.         return bound_method(*args, **kwargs)

File "/local/lib/python3.6/site-packages/django/utils/decorators.py" in _wrapped_view
  142.                     response = view_func(request, *args, **kwargs)

File "/local/lib/python3.6/site-packages/django/contrib/admin/options.py" in changeform_view
  1525.             return self._changeform_view(request, object_id, form_url, extra_context)

File "/local/lib/python3.6/site-packages/django/contrib/admin/options.py" in _changeform_view
  1564.                 self.save_model(request, new_object, form, not add)

File "/local/lib/python3.6/site-packages/django/contrib/admin/options.py" in save_model
  1091.         obj.save()

File "/local/lib/python3.6/site-packages/scheduler/models.py" in save
  77.             self.schedule()

File "/local/lib/python3.6/site-packages/scheduler/models.py" in schedule
  157.         job = self.scheduler().schedule(**kwargs)

File "/local/lib/python3.6/site-packages/rq_scheduler/scheduler.py" in schedule
  214.                               {job.id: to_unix(scheduled_time)})

File "/local/lib/python3.6/site-packages/redis/client.py" in zadd
  2051.                 raise RedisError("ZADD requires an equal number of "

Exception Type: RedisError at /admin/scheduler/repeatablejob/add/
Exception Value: ZADD requires an equal number of values and scores

Note: I shortened the paths because in the traceback because they were about nine miles long.