ilovehousegr on "[Plugin: W3 Total Cache] 403 Forbidden"

Hello,

When i am trying to push the save settings button (even if i am not make any change) at the Minify tab, i get this:

Forbidden

You don't have permission to access /gr/wp-admin/admin.php on this server.

Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request.

Any idea ?

http://wordpress.org/plugins/w3-total-cache/