unable to parse value of 'cores'

I migrate container lxc from proxmox with cpu i5 to a proxmox witch processador xeon i have this description when i have a backup o start the lxc container root@hp350:~# pct stop 402 vm 402 - unable to parse value of 'cores' - unknown setting 'cores' root@hp350:~# pct start 402 vm 402 -...