Cannot access admin if setting is set. Cannot access website if setting is not set

Using Django Deployment
1

I have a Django website in production so DEBUG = False

There is a setting:
SESSION_COOKIE_SECURE = True

If it is set to True then I can access the admin and log in, but then I cannot access the website itself and I get a bad gateway error. If the setting is missing or set to False then I can access the website fine but I cannot log into admin. A bit confusing

Here are the settings related to domains and CSRF:

ALLOWED_HOSTS =  ["localhost","102.219.85.91","founderslooking.com","app.founderslooking.com"]

CORS_ALLOWED_ORIGINS = [
    "http://localhost",
    "http://127.0.0.1",
    "http://localhost:file",
    "http://app.founderslooking.com",
]

CORS_ORIGIN_ALLOW_ALL = True

CORS_ALLOW_CREDENTIALS = True

SESSION_COOKIE_SAMESITE = None

SESSION_COOKIE_DOMAIN = "founderslooking.com"

SESSION_COOKIE_SECURE = True

CSRF_TRUSTED_ORIGINS = ["http://localhost", "http://*.127.0.0.1", "http://app.founderslooking.com",]

INTERNAL_IPS = [
    "127.0.0.1",
]

First time I deploy a Django site so not sure what the settings should be for production. Thanks

I see this error in the NginX log:

*611 upstream prematurely closed connection while reading response header from upstream,
2

Did you used SSL for your site like are you surfing your site on http or https?
Because if you have added these 3 in your settings then you should use https to serve your site.

SECURE_SSL_REDIRECT = True
SESSION_COOKIE_SECURE = True
CSRF_COOKIE_SECURE = True