Hello,

Please

1. make sure that your apache `mod_rewite` is enabled
2. check that `.htaccess` file is successfully uploaded and exists in the main directory of SMA
3. `base_url` in `app/config/config.php`

If you are using godaddy, please visit the codeigniter official guide here. You might need to check and modify you .htaccess files too.

You can always check your error log to get more information about the issue.

where can i find (mod_rewite)

On you server, you can check with your server admin/host. As per my experience 404 caused due yo missing .htaccess file in 90% cases. So you check that first then check will server admin. Thanks