N5200Pro and Firefly Module: Dont work / No songs

Hello,

I've got a problem with my N5200Pro v2.00.01.
I've installed the (N5200) module Firefly 2.00.03.
After the installation a message mentioned that the installation was not successful - but I think it was. :O_o1:
I was able to start the module and I was able to connect to the configuration-page.

The name of the Folder is "multimedia".

My Firefly configuration:
Config File Location: /raid0/data/module/FIREFLY/system/etc/firefly.conf
Music Folder: /raid0/data/multimedia
Playlist File: /raid0/data/module/FIREFLY/etc/firefly.playlist

Scan Type: 0 - Normal (I've tried every possibility)
Rescan Interval: 60
Always Scan: No / Yes

General: After saving every configuration an error occurs:
Error: 500general:<the name of the input field>

The server status:
Bonjour Stopped
Firefly Media Server Running
File scanner Idle

Plugin Version
rsp svn-1586
ssc-script svn-1586
daap svn-1586

Uptime 5 minutes, 4 seconds
Songs 0
Songs Served 0
DB Version 2

After configuring, I've started a scan and a full scan.

The server appears in iTunes - but without any song.

So, because of the installation-error and the error after saving the configuration: I think the Firefly isn't installed correctly.
On the other hand side: Somehow it is working - otherwise it won't appear in iTunes. :O_o1:

Edit: Is it possible that this is a problem of the permission /user of the Firefly?

May someone help me? :help:

Thanks!

Greetings from Germany!

cu
ALDI-Tuete