ZFS over iSCSI on proxmox, error parent is not a filesystem

[deepdive]

I have a problem with iscsi in trueanas scale, I created zvol pools from the wizard

root@truenas[~]# zfs list tank1/iscsishare
NAME USED AVAIL REFER MOUNTPOINT
tank1/iscsishare 508G 852G 74.6K -
root@truenas[~]# zfs get all tank1/iscsishare | egrep 'used|refer'
tank1/iscsishare used 508G -
tank1/iscsishare referenced 74.6K -
tank1/iscsishare usedbysnapshots 0B -
tank1/iscsishare usedbydataset 74.6K -
tank1/iscsishare usedbychildren 0B -
tank1/iscsishare usedbyrefreservation 508G -
tank1/iscsishare logicalused 28K -
tank1/iscsishare logicalreferenced 28K -

I created pools in proxmox zfs over scsi.
cat /etc/pve/storage.cfg

zfs: truenas-zfs-iscsi
blocksize 4k
iscsiprovider freenas
pool tank1/iscsishare
portal 192.168.99.134
target iqn.2005-10.org.freenas.ctl
content images
freenas_apiv4_host 192.168.99.134
freenas_password ***
freenas_use_ssl 0
freenas_user root
nowritecache 0
sparse 1

The problem is I can't create the disk
receives the message

cannot create 'tank1 / iscsishare / vm-101-disk-0': parent is not a filesystem
TASK ERROR: storage migration failed: command '/ usr / bin / ssh -o' BatchMode = yes' -i /etc/pve/priv/zfs/192.168.99.134_id_rsa root@192.168.99.134 zfs create -s -b 4k - V 5242880k tank1 / iscsishare / vm-101-disk-0 'failed: exit code 1

Which may be the reason why I can't create a disk for vm ?