Blank site after installation

hi,
I installed piwik on a ubuntu 10.04.1 LTS lamp server. The installation was sucsessful. But i cant open the piwik site. on firefox i see a blank site an on chrome i see nothing (if i klick on the folder name “piwik” in the browser)

does anybody know a solution?

thanks

check your error logs?

where i can find the logfiles?

i only cant open the webfrontend, the logging into the database is working.

On a stock Ubuntu 10.04, you’ll find the web server log files in /var/log/apache2/ – “access.log” and “error.log” are probably the ones you’ll be interested in.