checked the permissions and ownerships, all the same. I'm not sure about the session error>
Can somebody help me what I'm missing ? Thanks.


Either your browser cannot load the page's CSS and JavaScript from your web server, or the browser cannot apply these. This reply gives further details.
This is often caused by some mismatch between the URL entered in the browser and the one set in $CFG->wwwroot
in config.php
, these must be the same.
Where are you trying to do this install. Is it your own server, VPS, shared hosting...what???
When it works correctly the page should appear like this:
On my test server if I set up a site using HTTP (not HTTPS) the network requests for this page all have status 200 OK:
So there's possibly a mismatch between your site being HTTP (insecure), your browser or web server redirecting requests to HTTPS (secure) and your browser blocks mixing HTTP/HTTPS content in a page. If you want to use HTTP make sure your server isn't sending Content-Security-Policy: upgrade-insecure-requests
in the headers of responses (click on a request in the browser developer tools to see response headers). You may find it easier to set up this site using HTTPS (for example, with a self-signed HTTPS certificate and key pair for testing).
You could also try installing your site using the command line which would get you past this page. However if the HTTP/HTTPS issue is causing this problem it will still need resolving to have a working site.