Thread:Project:Support desk/New Setup/reply (4)

To know the cause, you need to provide an error message.

Look at the apache error log (it may be in /var/log/apache2/error.log or similar) and see the last lines of it to see what error message do you get. It may be that you placed the files in a different folder it expects to be, they have wrong permissions, or a syntax error in LocalSettings.php