qBittorrent official forums

I have qbittorrent running in a docker container and when I login using the default password and then go to settings i change a settings, like password or user or the theme from auto to dark press save and exit, it doesn't save any of the changes. I can only change anything from the qbittorrent.conf file. Does anyone have any idea what the problem and be?

So I gone to a different PC running windows and chrome( I was use Ubuntu mint and Firefox) and login to the server and the web UI and I able to make changes. I have no clue why haha