codeigniter 404 error Occurred in linode server .how fix it bro

codeigniter 404 error Occurred in linode server .how fix it bro

I changed conf.php

$config['index_page'] = '';

and

edit

.htaccess file

RewriteRule ^(.*)$ index.php$1 [L]

adn change apache.conf

AllowOverride None changed to AllowOverride All but not still work

give me help