codeigniter htaccess

Hi

I try deploy web app (codeigniter) but it is just show blank page.

Server information

/usr/local/apache/bin/httpd -M|grep rewrite
Syntax OK
 rewrite_module (static)

This is my .htaccess

DirectoryIndex index.php index.html

<IfModule mod_rewrite.c>

RewriteEngine On
#RewriteBase /webapp/
RewriteCond $1 !^(index\.php|assets|install|update)
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d

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

#RewriteRule ^(.*)$ index.php/$1 [NC,L,QSA]
#RewriteRule ^(.*)$ index.php?/$1 [L,QSA]

</IfModule>

What is it wrong ?

Yaya

Hi.

If you have a blank page, check your /usr/loca/apache/logs/error_log (or other if you've changed it).