I've a server running Ubuntu 11.04 and ISPConfig 2. I upgraded the OS to Ubuntu 12.04 and the ISPConfig 2 stopped working. I then found out that ISPConfig 2 does not work with Ubuntu 12.04. What can I do to fix the server now? Can I install ISPConfig 3 on the same server and move the web site and user a/c + emails to ISPConfig 3? Please help!