Could not create user

[serverok]

I installed EasyEngine on a Ubuntu 20.04 server. When i try setup a web site,. i get error

root@ee:~# ee site create smartandsolar.serverok.in --wp
Starting site creation.
Warning: Could not create user smartandsolar.serverok.in-8LHl6l. Please check logs.
Warning: Initiating clean-up.
Success: Site smartandsolar.serverok.in deleted.
Report bugs here: https://github.com/EasyEngine/site-type-wp
root@ee:~# 

Any idea how to fix this error ?

[serverok]

Fixed by specifying wordpress username with option --admin-user=admin

ee site create smartandsolar.serverok.in --wp --admin-user=admin