htaccess probleem

RewriteEngine on
Options +FollowSymlinks
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)$ navigation.php


RewriteRule .* - [E=HTTP_X_REQUESTED_WITH:%{HTTP:X-Requested-With}]

Ik krijg deze fout:

Citaat

Internal Server Error

The server encountered an internal error or misconfiguration and was unable to complete your request.

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