Dear Dmitry, I have just deployed Comentario on my server (Debian Trixie up to date) using the `comentario_3.4.0_linux_amd64.deb` Debian package, with an Apache httpd server configured as a reverse proxy. I was able to configure the Github OAuth provider, but I can't configure the Gitlab one and I haven't found any information about it in the documentation. I logged on to Gitlab, then went to my profile page. There, I selected the "Applications" menu item, then clicked on the "Add new application" button. In the proposed form, I have provided the following information: * Redirect URI: `<BASE_RUL>/oauth/gitlab/callback` * Scopes: `read_user` Then, I clicked on the "Save application" button. On my server, I edited the file `/etc/comentario/secrets.yaml` and added the "Application ID" as key, and the secret: ```yaml idp: gitlab: key: 6150..71a6 secret: gloas-485c..c8aa # disable: true ``` After that, I restarted the Comentario service and I activated the Gitlab provider in the configuration of my domain:  Then I tried to authenticate via Gitlab and got the following error:  Can you tell me what I missed?