How can I install Lims system on Ubuntu System

Dear Experts

I am a new person in the LIMS system. I have been trying to install LIMS system on Ubuntu by following Senaite Installation Guide on the official website. I have been trying to install this for over 5 months. Unfortunately, every time when I follow the guidance and try to enter at the end “bin/instance start”. It never works. Always an error.

I really dont know the guidance I am following is more advanced than I think or I dont know how to fix this.

I really need to build this on my computer. Please advise your expertise in a simple manner so I can try to follow you again.