I lost my data on Freenas+iScsi

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http://unix.stackexchange.com – I lost my data on Freenas+iScsi ZFS filesystem has mounted perfectly, I ran 'df' command and I can see the mount points. Also, If I browse into the folders I can see the scsi extends files, too. The problems are: If I try to view all volumes in the web interface, it doesn't show me. I can't create iscsi extends in web interface from existing extends. I think the solution would be if I could set ISCSI extendes, which I can create but cannot reuse the old. I don't know if I'll rewrite configuration it erase old extends or mount. (HowTos)