HTTP 500 internal server error

[io_matita]

hi guys
i just download the iauto script from www.iautosoftware.com and install it in my sit , the installation say success but after i delete the install.php file and I'm trying to open the site , its say
http 500 internal server error

i install the script in my site root
also
this is the .htaccess file
RewriteEngine On
RewriteBase /
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule .* ./index.php


and the admin

RewriteEngine On
RewriteBase /admin/
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule .* ./index.php

i don't know where is the problem

thanks for help

[iron]

It is hard to say what is the problem because the .htaccess files seems to be fine. You can submit a ticket to support@iautosoftware.com in order to investigate the issue.