ROM from Android kitchen

Hello, xda!

I need a help!
I want to port stock rom via Android kitchen, so I dumped system.img and boot.img from my phone and then I have tried to cook it in the kitchen.
But when I flash it, it says "Updater process ended with signal: 11"

Is there error in my rom or in the updater-script?
How to fix that?
Could be anyone here so kind to tell me, please?

recovery log while flashing:

Code:

---

I:operation_start: 'Flashing'
Installing zip file '/external_sd/VF-895N_signed_040116_202039.zip'
Checking for MD5 file...
Skipping MD5 check: no MD5 file found
I:Zip does not contain SELinux file_contexts file in its root.
I:Legacy property environment initialized.
Updater process ended with signal: 11
I:Legacy property environment disabled.
Error installing zip file '/external_sd/VF-895N_signed_040116_202039.zip'
Updating partition details...
I:mount -o bind '/data/media/0' '/sdcard' process ended with RC=0
I:Data backup size is 0MB, free: 3498MB.
I:sending message to remove 65537
I:Message sent, remove storage ID: 65537
mtppipe remove storage 65537
...done
I:Set page: 'flash_done'
I:operation_end - status=1

---

P.S. there is no stock rom (zip) for my phone yet, that's the reason I need to make it.
All we have is Sugar program that downloads the stock rom but when it downloads the rom, there are just .mbn files.
Is there any method to make the flashable stock rom from these .mbn files ?


Thank you so much for advices.

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