Traceback (most recent call last):
  File "C:/Program Files/pgAdmin 4/v4/venv/Lib/site-packages\sqlalchemy\engine\base.py", line 1277, in _execute_context
    self.dialect.do_execute(
  File "C:/Program Files/pgAdmin 4/v4/venv/Lib/site-packages\sqlalchemy\engine\default.py", line 593, in do_execute
    cursor.execute(statement, parameters)
sqlite3.OperationalError: duplicate column name: connect_timeout

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

Traceback (most recent call last):
  File "C:/Program Files/pgAdmin 4/v4/web/pgAdmin4.py", line 92, in <module>
    app = create_app()
  File "C:\Program Files\pgAdmin 4\v4\web\pgadmin\__init__.py", line 350, in create_app
    db_upgrade(app)
  File "C:\Program Files\pgAdmin 4\v4\web\pgadmin\setup\db_upgrade.py", line 25, in db_upgrade
    flask_migrate.upgrade(migration_folder)
  File "C:/Program Files/pgAdmin 4/v4/venv/Lib/site-packages\flask_migrate\__init__.py", line 95, in wrapped
    f(*args, **kwargs)
  File "C:/Program Files/pgAdmin 4/v4/venv/Lib/site-packages\flask_migrate\__init__.py", line 280, in upgrade
    command.upgrade(config, revision, sql=sql, tag=tag)
  File "C:/Program Files/pgAdmin 4/v4/venv/Lib/site-packages\alembic\command.py", line 298, in upgrade
    script.run_env()
  File "C:/Program Files/pgAdmin 4/v4/venv/Lib/site-packages\alembic\script\base.py", line 489, in run_env
    util.load_python_file(self.dir, "env.py")
  File "C:/Program Files/pgAdmin 4/v4/venv/Lib/site-packages\alembic\util\pyfiles.py", line 98, in load_python_file
    module = load_module_py(module_id, path)
  File "C:/Program Files/pgAdmin 4/v4/venv/Lib/site-packages\alembic\util\compat.py", line 184, in load_module_py
    spec.loader.exec_module(module)
  File "<frozen importlib._bootstrap_external>", line 783, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "C:\Program Files\pgAdmin 4\v4\web\pgadmin\setup\..\..\migrations\env.py", line 94, in <module>
    run_migrations_online()
  File "C:\Program Files\pgAdmin 4\v4\web\pgadmin\setup\..\..\migrations\env.py", line 87, in run_migrations_online
    context.run_migrations()
  File "<string>", line 8, in run_migrations
  File "C:/Program Files/pgAdmin 4/v4/venv/Lib/site-packages\alembic\runtime\environment.py", line 846, in run_migrations
    self.get_context().run_migrations(**kw)
  File "C:/Program Files/pgAdmin 4/v4/venv/Lib/site-packages\alembic\runtime\migration.py", line 520, in run_migrations
    step.migration_fn(**kw)
  File "C:\Program Files\pgAdmin 4\v4\web\migrations\versions\493cd3e39c0c_.py", line 22, in upgrade
    db.engine.execute(
  File "C:/Program Files/pgAdmin 4/v4/venv/Lib/site-packages\sqlalchemy\engine\base.py", line 2238, in execute
    return connection.execute(statement, *multiparams, **params)
  File "C:/Program Files/pgAdmin 4/v4/venv/Lib/site-packages\sqlalchemy\engine\base.py", line 1006, in execute
    return self._execute_text(object_, multiparams, params)
  File "C:/Program Files/pgAdmin 4/v4/venv/Lib/site-packages\sqlalchemy\engine\base.py", line 1175, in _execute_text
    ret = self._execute_context(
  File "C:/Program Files/pgAdmin 4/v4/venv/Lib/site-packages\sqlalchemy\engine\base.py", line 1317, in _execute_context
    self._handle_dbapi_exception(
  File "C:/Program Files/pgAdmin 4/v4/venv/Lib/site-packages\sqlalchemy\engine\base.py", line 1511, in _handle_dbapi_exception
    util.raise_(
  File "C:/Program Files/pgAdmin 4/v4/venv/Lib/site-packages\sqlalchemy\util\compat.py", line 178, in raise_
    raise exception
  File "C:/Program Files/pgAdmin 4/v4/venv/Lib/site-packages\sqlalchemy\engine\base.py", line 1277, in _execute_context
    self.dialect.do_execute(
  File "C:/Program Files/pgAdmin 4/v4/venv/Lib/site-packages\sqlalchemy\engine\default.py", line 593, in do_execute
    cursor.execute(statement, parameters)
sqlalchemy.exc.OperationalError: (sqlite3.OperationalError) duplicate column name: connect_timeout
[SQL: ALTER TABLE server ADD COLUMN connect_timeout INTEGER DEFAULT 0]
(Background on this error at: http://sqlalche.me/e/13/e3q8)