Systemback system install from restore point

I have an iso image of OS.
Whe I try to install it via Systemback bootscreen (as said in install manual) I get "the system installation is aborted there has been critical changes" error on 100% installation.
After launching Systemback from live cd itself, I get this error message in the terminal output

An error occured while cloning the properties of the following item:
/.systembacklivepoint/snap/core/4486
Target item:
/.sbsystemcopy/snap/core/4486

Can you help with this issue?