Error installaling ISPCONFIG using automated script on ubuntu20.04

I used this link to install ISPCONFIG.
https://www.howtoforge.com/ispconfig-autoinstall-debian-ubuntu/
and I encountered this error -

Code:

[ERROR] Exception occured: ISPConfigOSException -> Command echo "deb https://deb.goaccess.io/ $(lsb_release -cs) main" | tee /etc/apt/sources.list.d/goaccess.list >/dev/null 2>&1 ; wget -O - https://deb.goaccess.io/gnugpg.key 2>&1 | apt-key --keyring /etc/apt/trusted.gpg.d/goaccess.gpg add - 2>&1 failed. (/ispconfig.ai.php:15)

how to fix it?

ubuntu version - Ubuntu 20.04.5 LTS (GNU/Linux 5.4.0-131-generic x86_64)