Error on token_response['access_token']

[TECOLOGYxyz]

I am attempting to upload a large number of images to the platform, but nothing close to my limit. When I hit an upload error and attempt to generate the yaml file, I get the following error. A yaml file is generated, but I am not sure that I can trust that it is completed? I am using the client on my own computer and on a remote workstation and I run into this error on both machines.

File "/home/bitcue/anaconda3/envs/zooniverse/lib/python3.9/site-packages/panoptes_cli/commands/subject_set.py", line 412, in upload_subjects
    link_subjects(LINK_BATCH_SIZE)
  File "/home/bitcue/anaconda3/envs/zooniverse/lib/python3.9/site-packages/panoptes_cli/commands/subject_set.py", line 390, in link_subjects
    subject_set.add(list(upload_state['waiting_to_link'].keys()))
  File "/home/bitcue/anaconda3/envs/zooniverse/lib/python3.9/site-packages/panoptes_client/subject_set.py", line 95, in add
    return self.links.subjects.add(subjects)
  File "/home/bitcue/anaconda3/envs/zooniverse/lib/python3.9/site-packages/panoptes_client/subject_set.py", line 40, in add
    return super(SubjectSetLinkCollection, self).add(objs)
  File "/home/bitcue/anaconda3/envs/zooniverse/lib/python3.9/site-packages/panoptes_client/utils.py", line 56, in do_batch
    func(_self, batch, *args, **kwargs)
  File "/home/bitcue/anaconda3/envs/zooniverse/lib/python3.9/site-packages/panoptes_client/panoptes.py", line 1037, in add
    _objs = [obj for obj in self._build_obj_list(objs) if obj not in self]
  File "/home/bitcue/anaconda3/envs/zooniverse/lib/python3.9/site-packages/panoptes_client/panoptes.py", line 1037, in <listcomp>
    _objs = [obj for obj in self._build_obj_list(objs) if obj not in self]
  File "/home/bitcue/anaconda3/envs/zooniverse/lib/python3.9/site-packages/panoptes_client/subject_set.py", line 25, in __contains__
    linked_subject_count = SetMemberSubject.where(
  File "/home/bitcue/anaconda3/envs/zooniverse/lib/python3.9/site-packages/panoptes_client/panoptes.py", line 672, in where
    return cls.paginated_results(*cls.http_get(_id, params=kwargs))
  File "/home/bitcue/anaconda3/envs/zooniverse/lib/python3.9/site-packages/panoptes_client/panoptes.py", line 618, in http_get
    return Panoptes.client().get(
  File "/home/bitcue/anaconda3/envs/zooniverse/lib/python3.9/site-packages/panoptes_client/panoptes.py", line 314, in get
    return self.json_request(
  File "/home/bitcue/anaconda3/envs/zooniverse/lib/python3.9/site-packages/panoptes_client/panoptes.py", line 259, in json_request
    response = self.http_request(
  File "/home/bitcue/anaconda3/envs/zooniverse/lib/python3.9/site-packages/panoptes_client/panoptes.py", line 191, in http_request
    token = self.get_bearer_token()
  File "/home/bitcue/anaconda3/envs/zooniverse/lib/python3.9/site-packages/panoptes_client/panoptes.py", line 557, in get_bearer_token
    self.bearer_token = token_response['access_token']