NethServer Cockpit Panel Showing Black Screen Any Fix?

Hi everyone,

Iam experiencing an issue where NethServer’s Cockpit web interface loads to a black screen after login. The server itself is running fine, and services like email, VPN, and file sharing are working, but I can’t access the admin panel properly.
The browser loads the page, but the screen remains blank with no visible buttons or menus.

System Details
NethServer Version:
Access Method:Web browser (Chrome, Firefox)
Issue Behavior
Server services are still running, but Cockpit is unresponsive.
Tried different browsers and cleared cache—no effect.
Restarted Cockpit and NethServer, but the issue persists.
SSH access works fine.

Could this be related to a failed update, missing dependencies, or a JavaScript/CSS issue in Cockpit? Has anyone else faced this problem, and what solutions worked for you? Any advice would be appreciated. Thanks!

It could be due to an old certificate:

Maybe cockpit is quarantined?