## Bug description

I set up a self-hosted instance via AWS cloudformation and updated it recently.

The page /instance/status fails to load for me.

## Expected behavior

Instance status page loads successfully.

## How to reproduce

- Set up a cloudformation instance
- ???
- Visit /instance/status
- See report on 500 error from backend

## Environment

- 1.15.1 (latest docker container)

## Additional context

Not able to provide a lot of useful context here due to https://github.com/PostHog/deployment/issues/32

#### *Thank you* for your bug report – we love squashing them!

posthog/settings.py
CELERY_RESULT_BACKEND = REDIS_URL  # stores results for lookup when processing
CELERY_IGNORE_RESULT = True  # only applies to delay(), must do @shared_task(ignore_result=True) for apply_async
REDBEAT_LOCK_TIMEOUT = 45  # keep distributed beat lock for 45sec
# Password validation
# https://docs.djangoproject.com/en/2.2/ref/settings/#auth-password-validators
AUTH_PASSWORD_VALIDATORS = [
    {"NAME": "django.contrib.auth.password_validation.MinimumLengthValidator",},
]
# Internationalization
# https://docs.djangoproject.com/en/2.2/topics/i18n/
LANGUAGE_CODE = "en-us"
TIME_ZONE = "UTC"
USE_I18N = True
USE_L10N = True
USE_TZ = True
# Static files (CSS, JavaScript, Images)
# https://docs.djangoproject.com/en/2.2/howto/static-files/
STATIC_ROOT = os.path.join(BASE_DIR, "staticfiles")
STATIC_URL = "/static/"
STATICFILES_DIRS = [
    os.path.join(BASE_DIR, "frontend/dist"),
]
STATICFILES_STORAGE = "whitenoise.storage.CompressedManifestStaticFilesStorage"
AUTH_USER_MODEL = "posthog.User"
LOGIN_URL = "/login"
LOGOUT_URL = "/logout"
LOGIN_REDIRECT_URL = "/"
APPEND_SLASH = False
CORS_URLS_REGEX = r"^/api/.*$"
REST_FRAMEWORK = {