SocketIO session disconnected

The self reg app failed twice within a short period of time.

Here's error message from /var/log/account/error.log

[2024-03-05 16:36:31 -0600] [317239] [ERROR] Error handling request /socket.io/?EIO=3&transport=polling&t=OuGmkEB&sid=85cf84fe4909470eb11acbe5a6543cd4
Traceback (most recent call last):
  File "/var/www/ood/register/account/venv/lib64/python3.6/site-packages/gunicorn/workers/base_async.py", line 55, in handle
    self.handle_request(listener_name, req, client, addr)
  File "/var/www/ood/register/account/venv/lib64/python3.6/site-packages/gunicorn/workers/ggevent.py", line 127, in handle_request
    super().handle_request(listener_name, req, sock, addr)
  File "/var/www/ood/register/account/venv/lib64/python3.6/site-packages/gunicorn/workers/base_async.py", line 108, in handle_request
    respiter = self.wsgi(environ, resp.start_response)
  File "/var/www/ood/register/account/venv/lib64/python3.6/site-packages/flask/app.py", line 2463, in __call__
    return self.wsgi_app(environ, start_response)
  File "/var/www/ood/register/account/venv/lib64/python3.6/site-packages/flask_socketio/__init__.py", line 46, in __call__
    start_response)
  File "/var/www/ood/register/account/venv/lib64/python3.6/site-packages/engineio/middleware.py", line 60, in __call__
    return self.engineio_app.handle_request(environ, start_response)
  File "/var/www/ood/register/account/venv/lib64/python3.6/site-packages/socketio/server.py", line 534, in handle_request
    return self.eio.handle_request(environ, start_response)
  File "/var/www/ood/register/account/venv/lib64/python3.6/site-packages/engineio/server.py", line 393, in handle_request
    socket = self._get_socket(sid)
  File "/var/www/ood/register/account/venv/lib64/python3.6/site-packages/engineio/server.py", line 561, in _get_socket
    raise KeyError('Session is disconnected')
KeyError: 'Session is disconnected'

added Backlog label

changed the description

Maybe the internet connection was unstable?

https://stackoverflow.com/questions/69746102/python-socketio-keyerror-session-is-disconnected