Error 403 when trying to add articles or change any options

Sorry, there was in error in my nginx-config. For me everything was fine and visible. Now it should be for you as well. Still the problem with error 403 stays.

I case, my nginx-config as well:

##############################
### Docker: Bonn.Community ###
##############################


server {
        listen 80;
        server_name bonn.community www.bonn.community;
        return 301 https://bonn.community$request_uri;
}

server {
        listen 443 ssl spdy;
        server_name www.bonn.community;
        ssl_certificate /etc/letsencrypt/live/bonn.community/fullchain.pem;
        ssl_certificate_key /etc/letsencrypt/live/bonn.community/privkey.pem;
        ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
	      ssl_ciphers 'ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-DSS-AES128-GCM-SHA256:kEDH+AESGCM:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA:ECDHE-ECDSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA:DHE-DSS-AES128-SHA256:DHE-RSA-AES256-SHA256:DHE-DSS-AES256-SHA:DHE-RSA-AES256-SHA:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES256-SHA256:AES128-SHA:AES256-SHA:AES:CAMELLIA:DES-CBC3-SHA:!aNULL:!eNULL:!EXPORT:!DES:!RC4:!MD5:!PSK:!aECDH:!EDH-DSS-DES-CBC3-SHA:!EDH-RSA-DES-CBC3-SHA:!KRB5-DES-CBC3-SHA';
        ssl_prefer_server_ciphers on;
	      ssl_dhparam /etc/nginx/ssl/dhparams.pem;
        ssl_session_cache shared:SSL:50m;
        ssl_session_timeout 5m;
        return 301 https://bonn.community$request_uri;
}

server {
        listen 443 ssl spdy;
        server_name bonn.community;
        ssl_certificate /etc/letsencrypt/live/bonn.community/fullchain.pem;
        ssl_certificate_key /etc/letsencrypt/live/bonn.community/privkey.pem;
        ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
	      ssl_ciphers 'ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-DSS-AES128-GCM-SHA256:kEDH+AESGCM:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA:ECDHE-ECDSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA:DHE-DSS-AES128-SHA256:DHE-RSA-AES256-SHA256:DHE-DSS-AES256-SHA:DHE-RSA-AES256-SHA:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES256-SHA256:AES128-SHA:AES256-SHA:AES:CAMELLIA:DES-CBC3-SHA:!aNULL:!eNULL:!EXPORT:!DES:!RC4:!MD5:!PSK:!aECDH:!EDH-DSS-DES-CBC3-SHA:!EDH-RSA-DES-CBC3-SHA:!KRB5-DES-CBC3-SHA';
        ssl_prefer_server_ciphers on;
	      ssl_dhparam /etc/nginx/ssl/dhparams.pem;
        ssl_session_cache shared:SSL:50m;
        ssl_session_timeout 5m;
        add_header Strict-Transport-Security max-age=31536000;
        location / {
            proxy_pass http://unix:/var/discourse/shared/standalone/nginx.http.sock:;
            proxy_set_header Host $http_host;
            proxy_http_version 1.1;
            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        }
}