Error 500 when browsing directory

[Einschtein]

Hi,

When browsing any webdirectory, via the browser, I am getting an error 500 code. I have no idea what's causing it, I am using NGINX.

Does anyone knows what to do? I can access the regular files, but I got a website that I need to browse on to search files. I am using a Directory Listening Script, but it's also appearing when browsing a random directory without that script. So, the script is not the issue.

Any help? I am using Debian Squeeze and ISPConfig 3.

[till]

Which error do you get in the nginx error log file or the error.log file of the website?