pct unlock [container ID number]
LXC
VM
qm unlock <VMID>
Manually Deleting the Lock
rm /var/lock/qemu-server/lock-<VMID>.conf
Quelle: How to Unlock a Proxmox VM
pct unlock [container ID number]
qm unlock <VMID>
rm /var/lock/qemu-server/lock-<VMID>.conf
Quelle: How to Unlock a Proxmox VM