[Answer]-Django: url and content creation results in 500 and no apache error log entry

I suggest you to take a look a the several handy ways to log errors with django.
For production, you will want to configure your logging behavior.
You can find an example here in the same docs.

What I personally do in production is enabling email logging, it sends me an email each time there is a fatal error.

Let’s see what it would look like for logging both by mail and in a file:

settings.py

LOGGING = {
    'version': 1,
    'disable_existing_loggers': False,
    'handlers': {
        'mail_admins': {
            'level': 'ERROR',
            'class': 'django.utils.log.AdminEmailHandler'
        },
        'logfile': {
            'class': 'logging.handlers.WatchedFileHandler',
            'filename': '/var/log/django/your_application.log'
        },
    },
    'loggers': {
        'django.request': {
            'handlers': ['mail_admins'],
            'level': 'ERROR',
            'propagate': True,
        },
        'django': {
            'handlers': ['logfile'],
            'level': 'ERROR',
            'propagate': False,
        },
    }
}