Error 500 since the beginning

Hi,
I have just upload the files of my website and created by database, and I get the "500 Internal Server Error" since the very first moment.
The .htaccess file is the default one in my own website and permissions are set to 755 to all the files.
How can I see a LOG file to check why this error is happening?

Thank you.

[karl94]

How can I see a LOG file to check why this error is happening?

There are no log files available, could you please write the steps needed to reproduce the issue?

Hi. I solved it by using another htaccess file, but I am still having problems to upload modules to my website, as it seems FTP via PHP is not enabled.
Is it possible to enable it?
Thank you.

[karl94]

it seems FTP via PHP is not enabled.

What do you mean exactly? On AlterVista PHP scripts can't make TCP connections to ports different than 80 or 443. Why would you need FTP in order to upload files via PHP?

My CMS (Social Engine) uses FTP via PHP to upload and install the plugins. I have not found any work around to do it manually.