ERPnext installation and deployment problem

I have windows 10 PC with apache 2.4 and php 7.2.4 then I have installed virtual box.
I have downloaded the two images production and develop.
I have started these two images and after entering the user name and password of the ubuntu machines develop and production, I have entered in the hosting browser localhost:8000 and 8080.
the browser shows an error: “This site cannot be reached”.

Any one can help in this issue?

Check the console/terminal for a traceback