ERPNext is not working. Showing error like "User Guest not found"

To All,

I am facing the same issue after a fresh install on WSL Ubuntu 18.04 using the steps in this article: [Tutorial] How To install ERPNext V12 on windows 10 home / Pro WSL ubuntu 18.04LTS

The only thing I did differently was to setup supervisor and nginx as stated in “Setup Production” guide of the Easy Install Script.

Any help is appreciated.

Regard,
Ankit.