If Proxmox won't start aVM with an error like this:
trying to acquire lock...
TASK ERROR: can't lock file '/var/lock/qemu-server/lock-102.conf' - got timeout
rm /var/lock/qemu-server/lock-102.conf
Then try to restart the VM and it should be good.
proxmox, acquire, task, var, qemu, server, conf, timeoutif, avm, timeout, rm, restart, vm,