IPv4 CIDR Block

[Drtatom]

Hi
This project is no working in my Oracle instance (with Ubuntu 20.04). I was wondering if it is related with the IPv4 CIDR Block. I have assigned 10.0.0.0/24 but the setup use the range 10.66.66.*.
Should I modify the setup file? In that case, How do I start again the full installation? Because when I enter setup again it only adds a new client rather install the whole project from scratch.
Thank you!