A new version of the ISPConfig Autoinstaller script has been released. The latest version fixes several minor issues in the configuration of Debian 12 systems and adds support for PHP 8.3 as the website PHP version.
ISPConfig Automated Installation Tutorial
https://www.howtoforge.com/ispconfig-autoinstall-debian-ubuntu/
GIT Repository of the ISPConfig Autoinstaller
https://git.ispconfig.org/ispconfig/ispconfig-autoinstaller/-/issues/