Cyber Panel wont install in Ubuntu 18.04,20.04,21.04

I don’t what should I do to install cyberpanel in my ubuntu environment …
this is the image of problem

I used sudo , without sudo , but the problem exist

This is the command for installing it
sh <(curl || wget -O -

Are you able to ping ?

nslookup ?

If it´s a issue with SSL (Proxy?) you can download the installer unencrypted:


Yes I have ping and trace
this is the second part that you removed s to non secure , Need that I remove the first ssl or not?

it wont install in anyway…

I found this command and its not working again :

sudo su -c “sh <(curl || wget -O -”

This is the error :
If you don’t have direct access to root user, please run sudo su - command (do NOT miss the - at end or it will fail) and then run installation command again.

I found and solved my problem

First need :
$Sudo su root
$su -root
sh <(curl || wget -O -