Apache2 restart not working after upgrading to Plesk 9.2

[Lagaf]

Hi there,

after upgrading from Plesk 8.6 to 9.2 I can't restart the apache2 webserver over the shell any more

root@whatever.com:~# /etc/init.d/apache2 restart
 * Restarting web server apache2
(98)Address already in use: make_sock: could not bind to address 0.0.0.0:80
no listening sockets available, shutting down
Unable to open logs
                                    [COLOR="Red"][B][fail][/B][/COLOR]

The apache2 process isn't closed properly so the only (dirty) solution is to kill the process with killall -9 apache2

Additional notice: An apache2 restart over the plesk control panel GUI under "Services" does its job, but I prefer restarting it over the shell.

Thanks in advance!