6.0 marshmallow - Plasma Mobile in MultiROM Manager on Nexus 5

I tried to install Plasma Mobile on Nexus 5. It is very important to me to start testing it in MultiROM Manager first (with some other mobile operating systems).
I followed this tutorial.
In section:

Finally install the Plasma Phone

on:

It will take while to download. After download is over, it will reboot to recovery, in recovery it will make real installation process, so drink a coffee meanwhile.. ;-)

I got error:

cheching file device-687a931c47e1...d6b63d42054.tar.xz..FAILED

I checked "dev" (version 8), but I got same error on: "dev-proposed" (version 1).
I have:

1. OS version (official Nexus 5 latest update - 6 IX 2016):
   

   
   

   Andorid 6.01
   

   
   
   

   
   


2. Kernel:
   

   
   

   3.4.0-g4ad03fa-dirty
   tasadar@tyene #1
   Tue Feb 9 21:30:30 CET 2016

   
   

   
   


3. Compilation number:
   
   

   
   

   M0B31E

   
   

   
   

In MultiROM (patched - like in tutorial) I have installed:

1. 
   

   
   

   MultiROM v33

   
   
   

   
   


2. 
   

   
   

   Recovery 2016-02-10 (0)"

   
   

   
   


3. 
   

   
   

   Kernel: Stock 6.0 and 6.1

   
   
   

   
   

How can I solve this error message?