when you send request below error accurs

[mirkan1]

I am not sure if it is because of the requests are 500 or not but there it is

Traceback (most recent call last):
  File "/usr/local/lib/python3.7/site-packages/flask/app.py", line 2463, in __call__
    return self.wsgi_app(environ, start_response)
  File "/usr/local/lib/python3.7/site-packages/werkzeug/middleware/proxy_fix.py", line 232, in __call__
    return self.app(environ, start_response)
  File "/usr/local/lib/python3.7/site-packages/flask/app.py", line 2449, in wsgi_app
    response = self.handle_exception(e)
  File "/usr/local/lib/python3.7/site-packages/flask_restful/__init__.py", line 269, in error_router
    return original_handler(e)
  File "/usr/local/lib/python3.7/site-packages/flask/app.py", line 1866, in handle_exception
    reraise(exc_type, exc_value, tb)
  File "/usr/local/lib/python3.7/site-packages/flask/_compat.py", line 39, in reraise
    raise value
  File "/usr/local/lib/python3.7/site-packages/flask/app.py", line 2446, in wsgi_app
    response = self.full_dispatch_request()
  File "/usr/local/lib/python3.7/site-packages/flask/app.py", line 1951, in full_dispatch_request
    rv = self.handle_user_exception(e)
  File "/usr/local/lib/python3.7/site-packages/flask_restful/__init__.py", line 269, in error_router
    return original_handler(e)
  File "/usr/local/lib/python3.7/site-packages/flask/app.py", line 1820, in handle_user_exception
    reraise(exc_type, exc_value, tb)
  File "/usr/local/lib/python3.7/site-packages/flask/_compat.py", line 39, in reraise
    raise value
  File "/usr/local/lib/python3.7/site-packages/flask/app.py", line 1946, in full_dispatch_request
    request_started.send(self)
  File "/usr/local/lib/python3.7/site-packages/blinker/base.py", line 267, in send
    for receiver in self.receivers_for(sender)]
  File "/usr/local/lib/python3.7/site-packages/blinker/base.py", line 267, in <listcomp>
    for receiver in self.receivers_for(sender)]
  File "/app/redash/models/users.py", line 52, in update_user_active_at
    if current_user.is_authenticated and not current_user.is_api_user():
  File "/usr/local/lib/python3.7/site-packages/werkzeug/local.py", line 348, in __getattr__
    return getattr(self._get_current_object(), name)
  File "/usr/local/lib/python3.7/site-packages/werkzeug/local.py", line 307, in _get_current_object
    return self.__local()
  File "/usr/local/lib/python3.7/site-packages/flask_login/utils.py", line 26, in <lambda>
    current_user = LocalProxy(lambda: _get_user())
  File "/usr/local/lib/python3.7/site-packages/flask_login/utils.py", line 335, in _get_user
    current_app.login_manager._load_user()
  File "/usr/local/lib/python3.7/site-packages/flask_login/login_manager.py", line 359, in _load_user
    return self.reload_user()
  File "/usr/local/lib/python3.7/site-packages/flask_login/login_manager.py", line 321, in reload_user
    user = self.user_callback(user_id)
  File "/app/redash/authentication/__init__.py", line 49, in load_user
    org = current_org._get_current_object()
  File "/usr/local/lib/python3.7/site-packages/werkzeug/local.py", line 307, in _get_current_object
    return self.__local()
  File "/app/redash/authentication/org_resolving.py", line 18, in _get_current_org
    g.org = Organization.get_by_slug(slug)
  File "/app/redash/models/organizations.py", line 31, in get_by_slug
    return cls.query.filter(cls.slug == slug).first()
  File "/usr/local/lib/python3.7/site-packages/sqlalchemy/orm/query.py", line 3240, in first
    ret = list(self[0:1])
  File "/usr/local/lib/python3.7/site-packages/sqlalchemy/orm/query.py", line 3018, in __getitem__
    return list(res)
  File "/usr/local/lib/python3.7/site-packages/sqlalchemy/orm/query.py", line 3342, in __iter__
    return self._execute_and_instances(context)
  File "/usr/local/lib/python3.7/site-packages/sqlalchemy/orm/query.py", line 3364, in _execute_and_instances
    querycontext, self._connection_from_session, close_with_result=True
  File "/usr/local/lib/python3.7/site-packages/sqlalchemy/orm/query.py", line 3379, in _get_bind_args
    mapper=self._bind_mapper(), clause=querycontext.statement, **kw
  File "/usr/local/lib/python3.7/site-packages/sqlalchemy/orm/query.py", line 3357, in _connection_from_session
    conn = self.session.connection(**kw)
  File "/usr/local/lib/python3.7/site-packages/sqlalchemy/orm/session.py", line 1124, in connection
    execution_options=execution_options,
  File "/usr/local/lib/python3.7/site-packages/sqlalchemy/orm/session.py", line 1130, in _connection_for_bind
    engine, execution_options
  File "/usr/local/lib/python3.7/site-packages/sqlalchemy/orm/session.py", line 431, in _connection_for_bind
    conn = bind._contextual_connect()
  File "/usr/local/lib/python3.7/site-packages/sqlalchemy/engine/base.py", line 2239, in _contextual_connect
    self._wrap_pool_connect(self.pool.connect, None),
  File "/usr/local/lib/python3.7/site-packages/sqlalchemy/engine/base.py", line 2275, in _wrap_pool_connect
    return fn()
  File "/usr/local/lib/python3.7/site-packages/sqlalchemy/pool/base.py", line 363, in connect
    return _ConnectionFairy._checkout(self)
  File "/usr/local/lib/python3.7/site-packages/sqlalchemy/pool/base.py", line 760, in _checkout
    fairy = _ConnectionRecord.checkout(pool)
  File "/usr/local/lib/python3.7/site-packages/sqlalchemy/pool/base.py", line 492, in checkout
    rec = pool._do_get()
  File "/usr/local/lib/python3.7/site-packages/sqlalchemy/pool/impl.py", line 131, in _do_get
    code="3o7r",
sqlalchemy.exc.TimeoutError: QueuePool limit of size 5 overflow 10 reached, connection timed out, timeout 30 (Background on this error at: http://sqlalche.me/e/3o7r)

[jaroslawherod]

It looks like issue with connection to local postgresql. Can you validate if the issue still occurs ?