Internal Server Error on Codeigniter project

Internal Server Error on Codeigniter project

I got an error Internal Server Error when I try to access my site Its
works fine on localhost
I used go daddy hosting the files are hosted on subdomain
the domain path is
login.domain.com
here is my .htaccess file
RewriteEngine On
RewriteBase /
RewriteCond %{REQUEST_URI} ^system.*
RewriteRule ^(.*)$ /index.php/$1 [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)$ index.php/$1 [L]
ErrorDocument 404 /index.php
to remove the index i used
$config['index_page'] = '';