NethServer Cockpit Panel Showing Black Screen Any Fix?

[mrmarkuz (Markus Neuberger)]

It could be due to an old certificate:

Unable to login to Nethserver- blank page

many reasons what it is broken ssh to the server and check if the service cockpit is running you can try to recreate the certificate signal-event certificate-update else we could go back to the default certificate by cli

Maybe cockpit is quarantined?

Cockpit only show blank page

Found Quarantine on old webinterface under configuration / antivirus scanner. Restoring everything from quarantine brought back cockpit functionality. I will investigate further but for now I have disabled quarantine, put unofficial signatures back to low, and will observe the next fullscan before activating quarantine again, problem solved. Fortunately the old server manager is still there. I hope it will not be removed, as it is aparently rock-solid and helped me more than once …