502 ошибка шлюза при доступе к платежному API

Question

Я пытаюсь подключиться к платежному API, и я изолировал проблему с моей конфигурацией nginx, так как API отлично работает на localhost.API работает, когда success_redirect_url является http, но возвращает ошибку 502 с https.

Кто-нибудь знает, почему адрес https возвращается с ошибкой 502 nginx?

views.py:

client = gocardless_pro.Client(
    # We recommend storing your access token in an
    # environment variable for security
    access_token=settings.ACCESS_TOKEN,
    # Change this to 'live' when you are ready to go live.
    environment='live'
)

redirect = client.redirect_flows.create(
    params={
        "description" : "Add your investment amount on the next page", # This will be shown on the payment pages
        "session_token" : "t3s7", # Not the access token
        "success_redirect_url" : "https://www.custodian.fund/subscription/index",
        "prefilled_customer": {
        "email": current_user.email
    }

    }
)

default.conf:

    upstream custodian {
  # The web application.
  server custodian:8000;
}

# # # In case you want 'www' addresses to be automatically redirected without 'www'.
# # server {
# #   listen 80;
# #   listen 443;
# #   server_name www.custodian.fund;
# #   return 301 https://custodian.fund$request_uri;
# # }

server {
  listen 80;
  server_name custodian.fund www.custodian.fund;
  # server_name custodian.fund www.custodian.fund;
  root /var/www/letsencrypt;

  location /.well-known/acme-challenge/ {
    default_type "text/plain";

    try_files $uri =404;
  }

  location / {
    return 301 https://custodian.fund$request_uri;
  }
}
  # All http traffic will get redirected to SSL.
  #return 307 https://$host$request_uri;
#}

# # server {
# #   listen 80 default_deferred;
# #   server_name custodian.fund;

# #  # All http traffic will get redirected to SSL.
# #   return 307 https://custodian.fund$request_uri;
# # }

# # server {
# #   listen 443 ssl;
# #   server_name www.custodian.fund;

# #   return 301 https://custodian.fund$request_uri;
# # }

server {
  # "deferred" reduces the number of formalities between the server and client.
  listen 443 ssl;
  server_name custodian.fund;

  # Static asset path, which is read from the custodian container's VOLUME.
  root /custodian/static;

  # Ensure timeouts are equal across browsers and raise the max content-length size.
  keepalive_timeout 60;
  client_max_body_size 5m;

  # SSL goodness.
  ssl                       on;
  ssl_certificate /etc/ssl/private/insecure.pem;
  ssl_certificate_key /etc/ssl/insecure.key;
  ssl_trusted_certificate /etc/ssl/private/insecure.pem;
  # ssl_certificate /etc/ssl/private/custodian.fund.pem;
  # ssl_certificate_key /etc/ssl/custodian.fund.key;
  # ssl_trusted_certificate /etc/ssl/private/custodian.fund.pem;
  ssl_certificate
  ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
  ssl_ciphers "ECDHE-RSA-AES256-GCM-SHA384:ECDHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES128-SHA256:ECDHE-RSA-AES256-SHA:ECDHE-RSA-AES128-SHA:DHE-RSA-AES256-SHA256:DHE-RSA-AES128-SHA256:DHE-RSA-AES256-SHA:DHE-RSA-AES128-SHA:ECDHE-RSA-DES-CBC3-SHA:EDH-RSA-DES-CBC3-SHA:AES256-GCM-SHA384:AES128-GCM-SHA256:AES256-SHA256:AES128-SHA256:AES256-SHA:AES128-SHA:DES-CBC3-SHA:HIGH:!aNULL:!eNULL:!EXPORT:!DES:!MD5:!PSK:!RC4";
  ssl_dhparam /etc/ssl/dhparam.pem;
  ssl_prefer_server_ciphers on;
  ssl_session_cache shared:SSL:50m;
  ssl_session_timeout 5m;
  ssl_stapling on;
  ssl_stapling_verify on;
  resolver 8.8.8.8;
  resolver_timeout 5s;
  add_header Strict-Transport-Security "max-age=31536000; includeSubdomains;";


 # ssl_certificate /etc/ssl/certs/productionexample.crt;
 # ssl_certificate_key /etc/ssl/private/productionexample.key;


  # Disallow access to hidden files and directories.
  location ~ /\. {
    return 404;
    access_log off;
    log_not_found off;
  }

  # Allow optionally writing an index.html file to take precedence over the upstream.
  try_files $uri $uri/index.html $uri.html @custodian;

  # Attempt to load the favicon or fall back to status code 204.
  location = /favicon.ico {
    try_files /favicon.ico = 204;
    access_log off;
    log_not_found off;
  }

  # Load the web app back end with proper headers.
  location @custodian {
    proxy_set_header X-Forwarded-Proto $scheme;
    proxy_set_header Host $http_host;
    proxy_set_header X-Real-IP $remote_addr;
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_redirect off;
    proxy_pass http://custodian;
  }
}