Codeigniter is not working on godaddy subdomain

Please help me to upload codeigniter project on subdomain , my project is not working on subdomain, hosted on godaddy servers. I am getting errors. I am sure, you will help me. Please review my settings below:

config.php
$config['base_url']    = "http://www.mydomain.com/mysubdomain/";
$config['index_page'] = 'index.php';
$config['uri_protocol'] = 'REQUEST_URI';

routes.php
$route['default_controller'] = 'login';

htaccess within application foler
Deny from all

htaccess within root of subdomain
<IfModule mod_rewrite.c>
RewriteEngine On

# Send would-be 404 requests to Craft
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_URI} !^/(favicon\.ico|apple-touch-icon.*\.png)$ [NC]
RewriteRule (.+) index.php?p=$1 [QSA,L]

you should set your base url like

PHP Code:

$config['base_url']    = "http://mysubdomain.mydomain.com/"; 


Whats the error?
Be clear first.
Are you using sub domain or sub-folder?

Web Developer