C:\Users\Serg>docker logs fusion_web_1
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Exception in thread django-main-thread:
Traceback (most recent call last):
  File "/usr/local/lib/python3.8/site-packages/mysql/connector/connection_cext.py", line 216, in _open_connection
    self._cmysql.connect(**cnx_kwargs)
_mysql_connector.MySQLInterfaceError: Can't connect to MySQL server on 'db' (111)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/local/lib/python3.8/threading.py", line 932, in _bootstrap_inner
    self.run()
  File "/usr/local/lib/python3.8/threading.py", line 870, in run
    self._target(*self._args, **self._kwargs)
  File "/usr/local/lib/python3.8/site-packages/django/utils/autoreload.py", line 54, in wrapper
    fn(*args, **kwargs)
  File "/usr/local/lib/python3.8/site-packages/django/core/management/commands/runserver.py", line 117, in inner_run
    self.check(display_num_errors=True)
  File "/usr/local/lib/python3.8/site-packages/django/core/management/base.py", line 387, in check
    all_issues = self._run_checks(
  File "/usr/local/lib/python3.8/site-packages/django/core/management/base.py", line 377, in _run_checks
    return checks.run_checks(**kwargs)
  File "/usr/local/lib/python3.8/site-packages/django/core/checks/registry.py", line 72, in run_checks
    new_errors = check(app_configs=app_configs)
  File "/usr/local/lib/python3.8/site-packages/django/core/checks/model_checks.py", line 32, in check_all_models
    errors.extend(model.check(**kwargs))
  File "/usr/local/lib/python3.8/site-packages/django/db/models/base.py", line 1235, in check
    *cls._check_fields(**kwargs),
  File "/usr/local/lib/python3.8/site-packages/django/db/models/base.py", line 1314, in _check_fields
    errors.extend(field.check(**kwargs))
  File "/usr/local/lib/python3.8/site-packages/django/db/models/fields/__init__.py", line 918, in check
    *super().check(**kwargs),
  File "/usr/local/lib/python3.8/site-packages/django/db/models/fields/__init__.py", line 205, in check
    *self._check_backend_specific_checks(**kwargs),
  File "/usr/local/lib/python3.8/site-packages/django/db/models/fields/__init__.py", line 326, in _check_backend_specific_checks
    return connections[db].validation.check_field(self, **kwargs)
  File "/usr/local/lib/python3.8/site-packages/mysql/connector/django/validation.py", line 22, in check_field
    field_type = field.db_type(connection)
  File "/usr/local/lib/python3.8/site-packages/django/db/models/fields/__init__.py", line 671, in db_type
    return connection.data_types[self.get_internal_type()] % data
  File "/usr/local/lib/python3.8/site-packages/django/db/__init__.py", line 28, in __getattr__
    return getattr(connections[DEFAULT_DB_ALIAS], item)
  File "/usr/local/lib/python3.8/site-packages/django/utils/functional.py", line 80, in __get__
    res = instance.__dict__[self.name] = self.func(instance)
  File "/usr/local/lib/python3.8/site-packages/mysql/connector/django/base.py", line 280, in data_types
    if self.features.supports_microsecond_precision:
  File "/usr/local/lib/python3.8/site-packages/django/utils/functional.py", line 80, in __get__
    res = instance.__dict__[self.name] = self.func(instance)
  File "/usr/local/lib/python3.8/site-packages/mysql/connector/django/features.py", line 48, in supports_microsecond_precision
    if self.connection.mysql_version >= (5, 6, 3):
  File "/usr/local/lib/python3.8/site-packages/django/utils/functional.py", line 80, in __get__
    res = instance.__dict__[self.name] = self.func(instance)
  File "/usr/local/lib/python3.8/site-packages/mysql/connector/django/base.py", line 538, in mysql_version
    temp_conn = mysql.connector.connect(**config)
  File "/usr/local/lib/python3.8/site-packages/mysql/connector/__init__.py", line 264, in connect
    return CMySQLConnection(*args, **kwargs)
  File "/usr/local/lib/python3.8/site-packages/mysql/connector/connection_cext.py", line 80, in __init__
    self.connect(**kwargs)
  File "/usr/local/lib/python3.8/site-packages/mysql/connector/abstracts.py", line 960, in connect
    self._open_connection()
  File "/usr/local/lib/python3.8/site-packages/mysql/connector/connection_cext.py", line 218, in _open_connection
    raise errors.get_mysql_exception(msg=exc.msg, errno=exc.errno,
mysql.connector.errors.DatabaseError: 2003 (HY000): Can't connect to MySQL server on 'db' (111)