Problem Responding a Topic

Hi everyone :raised_hand:
I have created a topic a few days ago about a MySQL problem. First, it was working perfect, others could reply my topic and I could respond to them as well. But today, while trying to respond to a user’s comment on my topic, it gives me the following error:

In addition to that, it does not let me log out of my account neiither.

Did it happen to anyone else? If you know how to solve this problem or know resources that might help, please let me know.

Thanks in advance for helping!

Hello @abdul19 Welcome to Meta! :discourse2:

If I had a problem with a specific Discourse Forum, I’d contact the admin. They’ll probably find further information in the logs. Usually, there is a contact address at


Hi @Moin, all! Here “the admin”! Thanks for replying. Also thanks to @abdul19 for starting this thread.

@abdul19 and I are working to set up a seed community on our research centre by using Discourse. Brief but great experience so far! Thanks for the hard work and for sharing! But we are also facing some issues also.

Our Discourse instance is running on an Ubuntu 22.04.4 LTS (Jammy) box, behind a Nginx reverse proxy server running on an AlmaLinux 9.3 (Shamrock Pampas Cat). It is up-to-date as per Upgrade several times a day (currently, 3.3.0.beta1-dev, latest-release +557)

Nginx configuration file for the site reads:

[rjr@e220i058h025lx sites-enabled]$ cat forum.conf
server {

    location / {
        proxy_set_header   X-Forwarded-For $remote_addr;
        proxy_set_header   Host $http_host;
        proxy_pass         "";

    listen 443 ssl; # managed by Certbot
    ssl_certificate /etc/letsencrypt/live/; # managed by Certbot
    ssl_certificate_key /etc/letsencrypt/live/; # managed by Certbot
    include /etc/letsencrypt/options-ssl-nginx.conf; # managed by Certbot
    ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem; # managed by Certbot


server {
    if ($host = {
        return 301 https://$host$request_uri;
    } # managed by Certbot

    listen 80;
    return 404; # managed by Certbot

[rjr@e220i058h025lx sites-enabled]$

Everything seemed to work fine until some days ago. I’m not able to remember the exact moment. Perhaps an upgrade, perhaps a change in settings. We started seeing mixed contents issues. Looking for a solution, we founded this thread. Setting force https to true, solved mixed content errors, but we are not able to log in.

I think at some point we were not able to log out, reply or post: this was the moment @abdul19 created this thread.

Currently, if force https is set to true, we don’t get mixed contents errors, but users can’t log in. Already logged-in users, are fully operative. When trying to log, after clicking login, we get:

If ‘force https’ is set to false, users can log in, but mixed content errors appear:

Does it make any sense for you? Could you guide us towards a solution? Could it me more suitable to create a new topic and link this post to it? Thanks!

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