[Makefile:858: UnrealFrontend] Error 6 on ubuntu terminal

Hello, i got the [Makefile:858: UnrealFrontend] Error 6 on ubuntu 20.04 terminal in the installation process. I tried several times and happens the same.

I am following this guide for installation How to Build Unreal Engine 4 on Ubuntu with Blender Assets – RabbitMacht

Anyone had similar experience?

could this be related to the system running out of memory, therefore either increase system memory or reduce the amount of jobs with the -j flag