I have a Codeigniter site which was working perfectly fine on centOS server. But from yesterday the site is not able to detect the query string and I'm getting 500 server error. The same code is working fine at localhost but at the CentOS server its giving error.

I'm using clean URL but for Jquery's Autocomplete I need query string to be worked. this is my query http://www.site.tld/Search/autocomplete/?country=Yes&query=agou

burada benim. htaccess olduğunu

RewriteEngine ON
Rewritebase /


RewriteCond $1 !^(index.php|assets|css|cache|images|flash|js|weather_images|user_images|new_images|crons|favicon\.ico|robots\.txt|system)

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

#Rewirte images rules
RewriteRule ^images/(.*)$ assets/images/$1 [L]
RewriteRule ^css/(.*)$ assets/css/$1 [L]
RewriteRule ^js/(.*)$ assets/js/$1 [L]

RewriteRule ^user_images/(.*)$ assets/user_images/$1 [L]


RewriteRule ^flash/(.*)$ assets/flash/$1 [L]

RewriteRule ^new_images/(.*)$ assets/new_images/$1 [L]

RewriteRule ^weather_images/(.*)$ assets/weather_images/$1 [L]

I'm Using Codeigniter 1.7.1
and in my config

$config['uri_protocol'] = "AUTO";

Herhangi bir öneri harika olurdu.