Unable to login. Where is the default userinfo.sql file? How do I initialize a database?

[JokerDevops]

errror log

[2019-05-24 11:15:03,387] ERROR in app: Exception on /api/v2/auth/login/ [POST]
Traceback (most recent call last):
  File "/usr/local/cesi/venv/lib/python3.6/site-packages/sqlalchemy/util/_collections.py", line 1010, in __call__
    return self.registry[key]
KeyError: 140072201742080

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/local/cesi/venv/lib/python3.6/site-packages/sqlalchemy/dialects/sqlite/pysqlite.py", line 338, in dbapi
    from pysqlite2 import dbapi2 as sqlite
ModuleNotFoundError: No module named 'pysqlite2'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/local/cesi/venv/lib/python3.6/site-packages/flask/app.py", line 2292, in wsgi_app
    response = self.full_dispatch_request()
  File "/usr/local/cesi/venv/lib/python3.6/site-packages/flask/app.py", line 1815, in full_dispatch_request
    rv = self.handle_user_exception(e)
  File "/usr/local/cesi/venv/lib/python3.6/site-packages/flask/app.py", line 1718, in handle_user_exception
    reraise(exc_type, exc_value, tb)
  File "/usr/local/cesi/venv/lib/python3.6/site-packages/flask/_compat.py", line 35, in reraise
    raise value
  File "/usr/local/cesi/venv/lib/python3.6/site-packages/flask/app.py", line 1813, in full_dispatch_request
    rv = self.dispatch_request()
  File "/usr/local/cesi/venv/lib/python3.6/site-packages/flask/app.py", line 1799, in dispatch_request
    return self.view_functions[rule.endpoint](**req.view_args)
  File "/usr/local/cesi/cesi/api/v2/auth.py", line 35, in login
    result = User.verify(user_credentials["username"], user_credentials["password"])
  File "/usr/local/cesi/cesi/models.py", line 37, in verify
    user = User.query.filter_by(username=username).first()
  File "/usr/local/cesi/venv/lib/python3.6/site-packages/flask_sqlalchemy/__init__.py", line 514, in __get__
    return type.query_class(mapper, session=self.sa.session())
  File "/usr/local/cesi/venv/lib/python3.6/site-packages/sqlalchemy/orm/scoping.py", line 78, in __call__
    return self.registry()
  File "/usr/local/cesi/venv/lib/python3.6/site-packages/sqlalchemy/util/_collections.py", line 1012, in __call__
    return self.registry.setdefault(key, self.createfunc())
  File "/usr/local/cesi/venv/lib/python3.6/site-packages/sqlalchemy/orm/session.py", line 3206, in __call__
    return self.class_(**local_kw)
  File "/usr/local/cesi/venv/lib/python3.6/site-packages/flask_sqlalchemy/__init__.py", line 143, in __init__
    bind = options.pop('bind', None) or db.engine
  File "/usr/local/cesi/venv/lib/python3.6/site-packages/flask_sqlalchemy/__init__.py", line 877, in engine
    return self.get_engine()
  File "/usr/local/cesi/venv/lib/python3.6/site-packages/flask_sqlalchemy/__init__.py", line 896, in get_engine
    return connector.get_engine()
  File "/usr/local/cesi/venv/lib/python3.6/site-packages/flask_sqlalchemy/__init__.py", line 559, in get_engine
    self._engine = rv = sqlalchemy.create_engine(info, **options)
  File "/usr/local/cesi/venv/lib/python3.6/site-packages/sqlalchemy/engine/__init__.py", line 435, in create_engine
    return strategy.create(*args, **kwargs)
  File "/usr/local/cesi/venv/lib/python3.6/site-packages/sqlalchemy/engine/strategies.py", line 87, in create
    dbapi = dialect_cls.dbapi(**dbapi_args)
  File "/usr/local/cesi/venv/lib/python3.6/site-packages/sqlalchemy/dialects/sqlite/pysqlite.py", line 343, in dbapi
    raise e
  File "/usr/local/cesi/venv/lib/python3.6/site-packages/sqlalchemy/dialects/sqlite/pysqlite.py", line 341, in dbapi
    from sqlite3 import dbapi2 as sqlite  # try 2.5+ stdlib name.
  File "/usr/local/Python3.6/lib/python3.6/sqlite3/__init__.py", line 23, in <module>
    from sqlite3.dbapi2 import *
  File "/usr/local/Python3.6/lib/python3.6/sqlite3/dbapi2.py", line 27, in <module>
    from _sqlite3 import *
ModuleNotFoundError: No module named '_sqlite3'
60.12.216.130 - - [24/May/2019 11:15:03] "POST /api/v2/auth/login/ HTTP/1.1" 500 -
[2019-05-24 11:15:05,009] ERROR in app: Exception on /api/v2/auth/login/ [POST]
Traceback (most recent call last):
  File "/usr/local/cesi/venv/lib/python3.6/site-packages/sqlalchemy/util/_collections.py", line 1010, in __call__
    return self.registry[key]
KeyError: 140072201742080

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/local/cesi/venv/lib/python3.6/site-packages/sqlalchemy/dialects/sqlite/pysqlite.py", line 338, in dbapi
    from pysqlite2 import dbapi2 as sqlite
ModuleNotFoundError: No module named 'pysqlite2'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/local/cesi/venv/lib/python3.6/site-packages/flask/app.py", line 2292, in wsgi_app
    response = self.full_dispatch_request()
  File "/usr/local/cesi/venv/lib/python3.6/site-packages/flask/app.py", line 1815, in full_dispatch_request
    rv = self.handle_user_exception(e)
  File "/usr/local/cesi/venv/lib/python3.6/site-packages/flask/app.py", line 1718, in handle_user_exception
    reraise(exc_type, exc_value, tb)
  File "/usr/local/cesi/venv/lib/python3.6/site-packages/flask/_compat.py", line 35, in reraise
    raise value
  File "/usr/local/cesi/venv/lib/python3.6/site-packages/flask/app.py", line 1813, in full_dispatch_request
    rv = self.dispatch_request()
  File "/usr/local/cesi/venv/lib/python3.6/site-packages/flask/app.py", line 1799, in dispatch_request
    return self.view_functions[rule.endpoint](**req.view_args)
  File "/usr/local/cesi/cesi/api/v2/auth.py", line 35, in login
    result = User.verify(user_credentials["username"], user_credentials["password"])
  File "/usr/local/cesi/cesi/models.py", line 37, in verify
    user = User.query.filter_by(username=username).first()
  File "/usr/local/cesi/venv/lib/python3.6/site-packages/flask_sqlalchemy/__init__.py", line 514, in __get__
    return type.query_class(mapper, session=self.sa.session())
  File "/usr/local/cesi/venv/lib/python3.6/site-packages/sqlalchemy/orm/scoping.py", line 78, in __call__
    return self.registry()
  File "/usr/local/cesi/venv/lib/python3.6/site-packages/sqlalchemy/util/_collections.py", line 1012, in __call__
    return self.registry.setdefault(key, self.createfunc())
  File "/usr/local/cesi/venv/lib/python3.6/site-packages/sqlalchemy/orm/session.py", line 3206, in __call__
    return self.class_(**local_kw)
  File "/usr/local/cesi/venv/lib/python3.6/site-packages/flask_sqlalchemy/__init__.py", line 143, in __init__
    bind = options.pop('bind', None) or db.engine
  File "/usr/local/cesi/venv/lib/python3.6/site-packages/flask_sqlalchemy/__init__.py", line 877, in engine
    return self.get_engine()
  File "/usr/local/cesi/venv/lib/python3.6/site-packages/flask_sqlalchemy/__init__.py", line 896, in get_engine
    return connector.get_engine()
  File "/usr/local/cesi/venv/lib/python3.6/site-packages/flask_sqlalchemy/__init__.py", line 559, in get_engine
    self._engine = rv = sqlalchemy.create_engine(info, **options)
  File "/usr/local/cesi/venv/lib/python3.6/site-packages/sqlalchemy/engine/__init__.py", line 435, in create_engine
    return strategy.create(*args, **kwargs)
  File "/usr/local/cesi/venv/lib/python3.6/site-packages/sqlalchemy/engine/strategies.py", line 87, in create
    dbapi = dialect_cls.dbapi(**dbapi_args)
  File "/usr/local/cesi/venv/lib/python3.6/site-packages/sqlalchemy/dialects/sqlite/pysqlite.py", line 343, in dbapi
    raise e
  File "/usr/local/cesi/venv/lib/python3.6/site-packages/sqlalchemy/dialects/sqlite/pysqlite.py", line 341, in dbapi
    from sqlite3 import dbapi2 as sqlite  # try 2.5+ stdlib name.
  File "/usr/local/Python3.6/lib/python3.6/sqlite3/__init__.py", line 23, in <module>
    from sqlite3.dbapi2 import *
  File "/usr/local/Python3.6/lib/python3.6/sqlite3/dbapi2.py", line 27, in <module>
    from _sqlite3 import *
ModuleNotFoundError: No module named '_sqlite3'
60.12.216.130 - - [24/May/2019 11:15:05] "POST /api/v2/auth/login/ HTTP/1.1" 500 -

[gocpp]

I have the same error.

[isbaran]

Did you install the said pysqlite2 module?