Problem with ispconfig after installation

hi,
i have installed ispconfig 3 on debian 4 etch, but after installation if i go to http://MY_IP_ADDRESS:8080 I can not display anything

know tell why

thanks!

 

I discovered that the problem is apache.

in the error.log there is this error:

unable to start piped log program ' /usr/sbin/vlogger -s access.log -t "%Y%m%d-access.log" /var/log/ispconfig/httpd': No such file or directory
Unable to open logs


why?

thanks!

 

What are the outputs of

Code:

ls -l /usr/sbin/vlogger

and

Code:

ls -la /var/log/

?