while stoping a VPS from virtuozzo this error will apear and vps will mount:

The following error(s) were detected:

Failed to stop Virtual Private Server '120'. Error invoking vzctl utility: Stopping VPS ...
VPS was stopped
Error executing umount script /etc/sysconfig/vz-scripts/vps.umount
vzquota : (error) Quota off syscall for id 1201111: Device or resource busy