Wordpress install fails with "group wordpress exists - if you want to add this user to that group, use -g."

[Tio]

My YunoHost server

Hardware: VPS bought online
YunoHost version: 4.1.7.3
I have access to my server : Through SSH | through the webadmin | direct access via keyboard / screen | …
Are you in a special context or did you perform some particular tweaking on your YunoHost instance ? : no

Description of my issue

Wordpress install fails with “group wordpress exists - if you want to add this user to that group, use -g.”

All of the log can be found here https://paste.yunohost.org/raw/ocafitoceq

[Tio]

I have manually removed the wordpress group and it works now. I am closing it.