It looks like the DB adapter is looking for a local PostgreSQL socket that doesn't exist.
Please adjust your Django project settings to specify the host and port for the DB connection - this will force PostgreSQL to connect over the network instead of via a socket. Example:
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.postgresql',
'NAME': 'your_database_name',
'USER': 'your_database_user_name',
'PASSWORD': 'your_database_user_password',
'HOST': '127.0.0.1',
'PORT': '5432',
}
}
