Gitlabber failing with 404 Group Not Found about gitlabber HOT 4 OPEN

2022-01-28 13:33:56,721 - urllib3.connectionpool - DEBUG - https://gitlab.devops.telekom.de:443 "GET /api/v4/groups/34573 HTTP/1.1" 404 33
Traceback (most recent call last):
  File "/home/maxr/.local/lib/python3.10/site-packages/gitlab/exceptions.py", line 311, in wrapped_f
    return f(*args, **kwargs)
  File "/home/maxr/.local/lib/python3.10/site-packages/gitlab/mixins.py", line 111, in get
    server_data = self.gitlab.http_get(path, **kwargs)
  File "/home/maxr/.local/lib/python3.10/site-packages/gitlab/client.py", line 761, in http_get
    result = self.http_request(
  File "/home/maxr/.local/lib/python3.10/site-packages/gitlab/client.py", line 727, in http_request
    raise gitlab.exceptions.GitlabHttpError(
gitlab.exceptions.GitlabHttpError: 404: 404 Group Not Found

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/home/maxr/git/GitHub/ezbz/gitlabber/gitlabber2/gitlab_tree.py", line 122, in get_subgroups
    subgroup = self.gitlab.groups.get(subgroup_def.id)
  File "/home/maxr/.local/lib/python3.10/site-packages/gitlab/v4/objects/groups.py", line 323, in get
    return cast(Group, super().get(id=id, lazy=lazy, **kwargs))
  File "/home/maxr/.local/lib/python3.10/site-packages/gitlab/exceptions.py", line 313, in wrapped_f
    raise error(e.error_message, e.response_code, e.response_body) from e
gitlab.exceptions.GitlabGetError: 404: 404 Group Not Found

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/lib/python3.10/runpy.py", line 196, in _run_module_as_main
    return _run_code(code, main_globals, None,
  File "/usr/lib/python3.10/runpy.py", line 86, in _run_code
    exec(code, run_globals)
  File "/home/maxr/git/GitHub/ezbz/gitlabber/gitlabber2/__main__.py", line 2, in <module>
    main()
  File "/home/maxr/git/GitHub/ezbz/gitlabber/gitlabber2/cli.py", line 43, in main
    tree.load_tree()
  File "/home/maxr/git/GitHub/ezbz/gitlabber/gitlabber2/gitlab_tree.py", line 161, in load_tree
    self.load_gitlab_tree()
  File "/home/maxr/git/GitHub/ezbz/gitlabber/gitlabber2/gitlab_tree.py", line 144, in load_gitlab_tree
    self.get_subgroups(group, node)
  File "/home/maxr/git/GitHub/ezbz/gitlabber/gitlabber2/gitlab_tree.py", line 125, in get_subgroups
    log.error(f"Error retrieving group {subgroup.name} (ID: {subgroup.id}): {error}. Check your permissions as you may not have access to it.")
UnboundLocalError: local variable 'subgroup' referenced before assignment