RoundCube Guide by Bene

[BeNe]

I would like to check and test the changes made by mediman for the PW-Changer. But my problem is that i switched over to a new Server.
Since this day i always get an Error in Roundcube by saving the Settings

Code:

Warning: include(Config.php) [function.include]: failed to open stream: Datei oder Verzeichnis nicht gefunden in /var/www/ispcp/gui/tools/roundcube/program/include/iniset.php on line 98

Warning: include() [function.include]: Failed opening 'Config.php' for inclusion (include_path='/var/www/ispcp/gui/tools/roundcube/:/var/www/ispcp/gui/tools/roundcube/program:/var/www/ispcp/gui/tools/roundcube/program/lib:/var/www/ispcp/gui/tools/roundcube/program/include:.:/usr/share/php:/usr/share/pear') in /var/www/ispcp/gui/tools/roundcube/program/include/iniset.php on line 98

Fatal error: Class 'Config' not found in /var/www/ispcp/gui/include/ispcp-config.php on line 31

I copied the roundcube folder 1:1 with scp, i can´t really understand the Problem.
Roundcube itself works, but i can´t save my settings anymore.

Someone can give me a tip ?

Thanks & Greez
BeNe