LucasFeb 13

I have just installed oxwall on the root of my site (LAST VERSION 1.8.4). It's working fine except the main page (index page) and when I try to customise it. It happens when I am logged in. If I am logged out, I can view the usual main page with news feed and all. But when I am logged in, the same main page showing page not found as attached file. 

The same problem when I have tried to customise the main page ...

Error text: 

The requested URL /index was not found on this server.

The requested URL index/customize was not found on this server.

THIS IS MY .htaccess

# Options +FollowSymLinks

RewriteEngine On

AddEncoding gzip .gz

AddEncoding gzip .gzip

<FilesMatch "\.(js.gz|js.gzip)$">

  ForceType text/javascript

</FilesMatch>

<FilesMatch "\.(css.gz|css.gzip)$">

  ForceType text/css

</FilesMatch>

RewriteCond %{REQUEST_URI} !^/index\.php

RewriteCond %{REQUEST_URI} !/ow_updates/index\.php

RewriteCond %{REQUEST_URI} !/ow_updates/

RewriteCond %{REQUEST_URI} !/ow_cron/run\.php

RewriteCond %{REQUEST_URI} !/e500\.php

RewriteCond %{REQUEST_URI} !/captcha\.php

#RewriteCond %{REQUEST_URI} (/|\.php|\.html|\.htm|\.xml|\.feed|robots\.txt|\.raw|/[^.]*)$  [NC]

RewriteCond %{REQUEST_FILENAME} (/|\.php|\.html|\.htm|\.xml|\.feed|robots\.txt|\.raw|/[^.]*)$  [NC]

RewriteRule (.*) index.php

Please help me solve this issue. 

Thanks for Reading

LUCAS