Unbricking MBL without UI or SSH enabled - THE guide

Hello , Iv done what you said, but I am still getting an error,
root@ubuntu:~# sudo bash /root/unbrick.sh /dev/sda4/dev/root/rootfs.img

********************** DISK           **********************

script could not find a matching sd unit connected to system.
root@ubuntu:~#
type dmesg taht show
open" parent=1 profile=“/usr/lib/telepathy/mission-control-5” name=“/usr/share/gvfs/remote-volume-monitors/” pid=1927 comm=“mission-control” requested_mask=“r” denied_mask=“r” fsuid=0 ouid=0
[  159.723103] EXT4-fs (sda4): bad block size 65536
[  173.809537] EXT4-fs (sda4): bad block size 65536
[  174.627794] EXT4-fs (sda4): bad block size 65536
[  587.859086] EXT4-fs (sda4): bad block size 65536
[  853.001527] EXT4-fs (sda4): bad block size 65536
Then what i s the promble
thank