Error: the directory $PREF{datadir} (fcdata) must be chmodded 0777, but it's currently 0755. In rare cases, some servers may not report 0777 even though the folder is chmodded correctly. If you're SURE you've chmodded it to 0777 (for 0777 that's AKA a+rwx, or "world-readable, -writable, and -executable"), then add $PREF{ignore_chmod_errors} = 'yes'; near the top of this script and try again.