Setup Multi Bench environment


Need your expertise on this.

I’ve tried to setup multi-bench environment.
First bench is working perfectly. Server started and I can access it from my browser.
port used (8000, 13000, 12000, 11000, 9000)

Second bench created using “–clone-from” option from first bench. Server started without error (port used 8001, 13001, 12001, 11001, 9001) however I can’t access it from my browser.
Got this error message on console :

This page isn’t working
localhost didn’t send any data.

Any idea what went wrong ? Any thought appreciated

P.S. I’m using VirtualBox, UBuntu 18.0.3LTS