ModuleNotFoundError: No module named 'socketio.sgunicorn'

[sevku]

I tried to fix some issues with the code but I can not solve the following:

Traceback (most recent call last):
  File "/home/user/webcam-streamer/venv/bin/gunicorn", line 33, in <module>
    sys.exit(load_entry_point('gunicorn==0.16.1', 'console_scripts', 'gunicorn')())
  File "/home/user/webcam-streamer/venv/lib/python3.8/site-packages/gunicorn/app/wsgiapp.py", line 32, in run
    WSGIApplication("%prog [OPTIONS] APP_MODULE").run()
  File "/home/user/webcam-streamer/venv/lib/python3.8/site-packages/gunicorn/app/base.py", line 127, in run
    Arbiter(self).run()
  File "/home/user/webcam-streamer/venv/lib/python3.8/site-packages/gunicorn/arbiter.py", line 54, in __init__
    self.setup(app)
  File "/home/user/webcam-streamer/venv/lib/python3.8/site-packages/gunicorn/arbiter.py", line 96, in setup
    self.worker_class = self.cfg.worker_class
  File "/home/user/webcam-streamer/venv/lib/python3.8/site-packages/gunicorn/config.py", line 78, in worker_class
    worker_class = util.load_class(uri)
  File "/home/user/webcam-streamer/venv/lib/python3.8/site-packages/gunicorn/util.py", line 133, in load_class
    mod = __import__('.'.join(components))
ModuleNotFoundError: No module named 'socketio.sgunicorn'