Comment 16 for bug 1722615

The permission problem is probably due to permission issue, open the volume with something like:

sudo zuluCrypt-cli -o -d /home/USERNAME/filename -K `id --user`

The "messed up" state of zuluCrypt packages on your system is something i can not advice on how to solve because i do not know how "messed up" the situation is.

Download again this[1] package and try again,after you have extract it,you will see a whole lot more packages. Install them all with "sudo dpkg -i *.deb" command and hopefully,they should install cleanly this time. I have build them using package number and names as the default ones and hence they should be able to update more easily.

[1] https://github.com/mhogomchungu/zuluCrypt/releases/download/5.2.0/zuluCrypt-5.2.0-ubuntu-17.10-Artful_Aardvark.tar.xz