looking at this again its easy for me but may be not for someone without terminal experience

you need rootsh installed first of all

open terminal and type "root" hit enter

type "mount -o remount,rw /home/user/MyDocs" enter

type "df -h" enter

you will see something like this
"dev/mmcblk0p1 27.0G 1.3G 25.7G 5% /home/user/MyDocs"

type "umount /home/user/MyDocs/" enter

type "fsck.vfat /dev/mmcblk0p1" enter

if what you see in red here is different from what you have change it.

the last command may have to run several times until the point where you dont get any errors.

Then close terminal and reboot your phone.