Cannot setup the Seafile Server


i tryed to setup the Seafile Server on a Raspberry Pi. When i run the script and insert all necessary values and click enter to finish the script, i am getting the error Failed to generate ccnet configuration.
I entered the following values:

My Seafile configuration

server name: Test
server ip/domain:

seafile data dir: /media/Backup/seafile/seafile-data
fileserver port: 8082

database: use existing
ccnet database: ccnet-db
seafile database: seafile-db
seahub database: seahub-db
database user: seafile

I tryed to configure it with the custom Database as well as the default Database.