Why RHV VM is failing to start with the error "Failed to start VNC server: Cannot load certificate"

Issue

• A virtual machine in RHV is failing to start with the error below.

2021-11-29 10:18:45,544+01 ERROR [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] (ForkJoinPool-1-worker-2) [] EVENT_ID: VM_DOWN_ERROR(119), VM down with error. Exit message: internal error: qemu unexpectedly closed the monitor: 2021-11-29T09:18:44.638216Z qemu-kvm: warning: All CPU(s) up to maxcpus should be described in NUMA config, ability to start up with partial NUMA mappings is obsoleted and will be removed in future

2021-11-29T09:18:44.663109Z qemu-kvm: -vnc 10.X.X.X:X,password,tls,x509=/etc/pki/vdsm/libvirt-vnc: Failed to start VNC server: Cannot load certificate '/etc/pki/vdsm/libvirt-vnc/server-cert.pem' & key '/etc/pki/vdsm/libvirt-vnc/server-key.pem': The certificate and the given key do not match