You are not able to download any images, css files from cache etc...

On an ezflow installation, when requesting "var/cache/public/stylesheets/69d1b0bb80dd4b9701f505e6a5d02759_all.css" there is a problem in kernel/clustering/gateway.php

in the call :

$this->passthrough( $filename, $filesize, $startOffset, $contentLength );

the $startOffset is false... causing the request to fail...