Problem with installers

[Chrysostomus]

Hi!

I created bspwm respin with manjaroiso. Iso boot nicely and works, but all installers give errors and fail. I tried it only in the virtualbox.

Calamares gives error:
installation failed
bad source
source= "/home/manjaro/_desktop-image_"

Thus says:
error creating partitions and their filesystems

cli-installer gives:
error partitioning /dev/sda
details displayed on /dev/tty8

The iso can be found here:
https://sourceforge.net/projects/manjarobspwmrespin/files/?source=navbar

Any idea what could cause this? Where should I look for an answer?
Thank you in advance for any help you can provide!

[Chrysostomus]

Manjaroiso profile I used can be found from here:

https://sourceforge.net/projects/manjarobspwmrespin/files/manjaroiso%20build/?