Hi there, it seems I did a BIG MISTAKE not reading the manual probably before uploading custom certificates in GUI, I'm very sorry about that. I really shot myself into foot doing that... I'm running a 2 node PVE-Cluster and tried to import self-signed certificates from a pfsense-ca in WebGUI on node 1. And there somethings gone wrong. I cannot reach the GUI (node1) anymore and system.log shows: Apr 19 16:38:02 pve1 pveproxy: worker 6347 started Apr 19 16:38:02 pve1 pveproxy: /etc/pve/local/pveproxy-ssl.key: failed to load local private key (key_file or key) at /usr/share/perl5/PVE/APIServer/AnyEvent.pm line 1683. Apr 19 16:38:02 pve1 pveproxy: worker exit Apr 19 16:38:02 pve1 pveproxy: worker 6320 finished The cluster seems to be still running, I can access VMs on both nodes over the WebGUI from node2. The datacenter shows everything is working fine. But I can't access the certificate configuration on node1, it runs into timeout. Because I definitv crashed something I'm very afraid to reboot one of the nodes. Is there any chance to fix that certificate problem?