Managed to generate the error log .
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed'); ?>
ERROR - 2017-04-17 04:40:40 --> 404 Page Not Found --> index
DEBUG - 2017-04-17 04:41:59 --> Config Class Initialized
DEBUG - 2017-04-17 04:41:59 --> Hooks Class Initialized
DEBUG - 2017-04-17 04:41:59 --> Utf8 Class Initialized
DEBUG - 2017-04-17 04:41:59 --> UTF-8 Support Enabled
DEBUG - 2017-04-17 04:41:59 --> URI Class Initialized
DEBUG - 2017-04-17 04:41:59 --> Router Class Initialized
DEBUG - 2017-04-17 04:41:59 --> No URI present. Default controller set.
DEBUG - 2017-04-17 04:41:59 --> Output Class Initialized
DEBUG - 2017-04-17 04:41:59 --> Security Class Initialized
DEBUG - 2017-04-17 04:41:59 --> Input Class Initialized
DEBUG - 2017-04-17 04:41:59 --> CRSF cookie Set
DEBUG - 2017-04-17 04:41:59 --> Global POST and COOKIE data sanitized
DEBUG - 2017-04-17 04:41:59 --> Language Class Initialized
DEBUG - 2017-04-17 04:41:59 --> Loader Class Initialized
DEBUG - 2017-04-17 04:41:59 --> Helper loaded: url_helper
DEBUG - 2017-04-17 04:41:59 --> Helper loaded: file_helper
DEBUG - 2017-04-17 04:41:59 --> Helper loaded: form_helper
DEBUG - 2017-04-17 04:41:59 --> Language file loaded: language/english/auth_lang.php
DEBUG - 2017-04-17 04:41:59 --> Language file loaded: language/english/ion_auth_lang.php
DEBUG - 2017-04-17 04:41:59 --> Database Driver Class Initialized
DEBUG - 2017-04-17 04:42:00 --> Config Class Initialized
DEBUG - 2017-04-17 04:42:00 --> Hooks Class Initialized
DEBUG - 2017-04-17 04:42:00 --> Utf8 Class Initialized
DEBUG - 2017-04-17 04:42:00 --> UTF-8 Support Enabled
DEBUG - 2017-04-17 04:42:00 --> URI Class Initialized
DEBUG - 2017-04-17 04:42:00 --> Router Class Initialized
DEBUG - 2017-04-17 04:42:00 --> No URI present. Default controller set.
DEBUG - 2017-04-17 04:42:00 --> Output Class Initialized
DEBUG - 2017-04-17 04:42:00 --> Security Class Initialized
DEBUG - 2017-04-17 04:42:00 --> Input Class Initialized
DEBUG - 2017-04-17 04:42:00 --> CRSF cookie Set
DEBUG - 2017-04-17 04:42:00 --> Global POST and COOKIE data sanitized
DEBUG - 2017-04-17 04:42:00 --> Language Class Initialized
DEBUG - 2017-04-17 04:42:00 --> Loader Class Initialized
DEBUG - 2017-04-17 04:42:00 --> Helper loaded: url_helper
DEBUG - 2017-04-17 04:42:00 --> Helper loaded: file_helper
DEBUG - 2017-04-17 04:42:00 --> Helper loaded: form_helper
DEBUG - 2017-04-17 04:42:00 --> Language file loaded: language/english/auth_lang.php
DEBUG - 2017-04-17 04:42:00 --> Language file loaded: language/english/ion_auth_lang.php
DEBUG - 2017-04-17 04:42:00 --> Database Driver Class Initialized
DEBUG - 2017-04-17 04:42:05 --> Config Class Initialized
DEBUG - 2017-04-17 04:42:05 --> Hooks Class Initialized
DEBUG - 2017-04-17 04:42:05 --> Utf8 Class Initialized
DEBUG - 2017-04-17 04:42:05 --> UTF-8 Support Enabled
DEBUG - 2017-04-17 04:42:05 --> URI Class Initialized
DEBUG - 2017-04-17 04:42:05 --> Router Class Initialized
DEBUG - 2017-04-17 04:42:05 --> No URI present. Default controller set.
DEBUG - 2017-04-17 04:42:05 --> Output Class Initialized
DEBUG - 2017-04-17 04:42:05 --> Security Class Initialized
DEBUG - 2017-04-17 04:42:05 --> Input Class Initialized
DEBUG - 2017-04-17 04:42:05 --> CRSF cookie Set
DEBUG - 2017-04-17 04:42:05 --> Global POST and COOKIE data sanitized
DEBUG - 2017-04-17 04:42:05 --> Language Class Initialized
DEBUG - 2017-04-17 04:42:05 --> Loader Class Initialized
DEBUG - 2017-04-17 04:42:05 --> Helper loaded: url_helper
DEBUG - 2017-04-17 04:42:05 --> Helper loaded: file_helper
DEBUG - 2017-04-17 04:42:05 --> Helper loaded: form_helper
DEBUG - 2017-04-17 04:42:05 --> Language file loaded: language/english/auth_lang.php
DEBUG - 2017-04-17 04:42:05 --> Language file loaded: language/english/ion_auth_lang.php
DEBUG - 2017-04-17 04:42:05 --> Database Driver Class Initialized
Can someone tell me where the problem is?
