ReadyNAS Data Recovery - VMware recovery tool

I am trying also to retrieve the data from a disk coming from my Ready NAS Duo with th VMWare image of Debian system (downloaded from the first page of the topic)
Badly I have yet some problem with this image.

Here you are the procedure that I applied to try to recover my data:

From a first terminal, I execute the following script:
debian-vm:/# cat mynas
#!/bin/bash
modprobe fuse
vgscan
vgchange -ay c
mkdir /mnt/lvm
ext2fuse /dev/c/c /mnt/lvm
cd /mnt/lvm

debian-vm:/# ./mynas
Reading all physical volumes. This may take a while...
Found volume group "c" using metadata type lvm2
1 logical volume(s) in volume group "c" now active
mkdir: cannot create directory `/mnt/lvm': File exists
/dev/c/c is to be mounted at /mnt/lvm
fuse-ext2: Can't read an inode bitmap while reading inode bitmap
-> here is the first error. What's that?
In addition, no information about block size is 16384". Why?
At this time this first console do'nt return to the prompt.

From a second terminal TERMINAL-2, I try to access my data:
debian-vm:/home/vmplanet# cd /mnt
debian-vm:/mnt# cd lvm
debian-vm:/mnt/lvm# ls
aquota.group Archives Download home media Pictures webroot
aquota.user Data eBooks lost+found Music Video
debian-vm:/mnt/lvm#

debian-vm:/mnt/lvm# ls eBooks
ls: cannot access eBooks: No such file or directory
debian-vm:/mnt/lvm#

In the same time, the following error messages are displayed on the first terminal:
TERMINAL-1
ext2fuse_dbg_msg: Bad address while reading inode 7798785
ext2fuse_dbg_msg: Operation not permitted while reading inode 7798785
ext2fuse_dbg_msg: Bad address while reading inode 7798785
ext2fuse_dbg_msg: Operation not permitted while reading inode 7798785

Could you help me to restore my data? Please !!!