nginxにssl対応させたのですが、サイトが表示されなくなりました。

問題

AWS EC2 AMI
httpの時は問題なく表示が出来るのですが、httpsにした後から入れなくなりました。
よろしくお願いします。

発生している問題・エラーメッセージ

サイトにhttpsでアクセスした時

ERR_CONNECTION_REFUSED

###tail mysite.access.log

terminal
1119.83.220.12 - - [22/Apr/2018:15:11:08 +0900] "GET / HTTP/1.1" 200 554 "http://mysite.com/" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/65.0.3325.181 Safari/537.36"
2119.83.220.12 - - [22/Apr/2018:15:11:08 +0900] "GET /favicon.ico HTTP/1.1" 200 554 "http://mysite.com/" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/65.0.3325.181 Safari/537.36"

/etc/nginx/conf.d/mysite.com.conf

terminal
1# the upstream component nginx needs to connect to
2upstream django {
3    server unix:/home/ec2-user/django/mysite/mysite.sock; # for a file socket
4    # server 127.0.0.1:8001; # for a web port socket (we'll use this first)
5}
6
7server {
8        listen          80;
9        server_tokens   off;
10        server_name     mysite.com;
11        return          301 https://mysite.com$request_uri;
12}
13
14server {
15        #listen         80;
16        listen          433 ssl;
17        server_name     mysite.com;
18
19        ssl             on;
20        ssl_certificate         /etc/letsencrypt/live/www.mysite.com/fullchain.pem;
21        ssl_certificate_key     /etc/letsencrypt/live/www.mysite.com/privkey.pem;
22        #ssl_dhparam /etc/nginx/ssl/dhparam.pem;
23        ssl_prefer_server_ciphers  on;
24        ssl_ciphers  'ECDH !aNULL !eNULL !SSLv2 !SSLv3';
25        add_header Strict-Transport-Security "max-age=31536000; includeSubdomains";
26        client_max_body_size    100M;
27        access_log      /var/log/mysite.com.access.log;
28        error_log       /var/log/mysite.com.error.log;
29
30        #--------------
31        #Handle Django
32        #--------------
33        location / {
34        #proxy_pass       http://127.0.0.1;
35        uwsgi_pass      django;
36        include         /etc/nginx/uwsgi_params;
37        #include                uwsgi_pass;
38        proxy_set_header Upgrade         $http_upgrade;
39        proxy_set_header Connection      "upgrade";
40        proxy_set_header Host            $host;
41        proxy_set_header X-Real-IP       $remote_addr;
42        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
43    }
44        #----------
45        # server static files
46        #----------
47
48        # here we assume the STATIC_ROOT inside your django project is
49    # set to /static/ 
50    location /static/ {
51        autoindex       on;
52        alias   /home/ec2-user/django/static/;
53    }
54
55}

/etc/nginx/nginx.conf

terminal
1user root;
2worker_processes auto;
3error_log /var/log/nginx/error.log;
4pid /var/run/nginx.pid;
5
6events {
7    worker_connections 1024;
8}
9
10http {
11    log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
12                      '$status $body_bytes_sent "$http_referer" '
13                      '"$http_user_agent" "$http_x_forwarded_for"';
14
15    access_log  /var/log/nginx/access.log  main;
16
17    sendfile            on;
18    tcp_nopush          on;
19    tcp_nodelay         on;
20    keepalive_timeout   65;
21    types_hash_max_size 2048;
22
23    include             /etc/nginx/conf.d/*.conf;
24    include             /etc/nginx/mime.types;
25    default_type        application/octet-stream;
26}