Hi. We are getting errors again when installing ibrdtn in Raspberry Pi. Here are the messages:

pi@raspberrypi:~ $ sudo nano /etc/apt/sources.list
pi@raspberrypi:~ $ wget -O - http://jenkins.ibr.cs.tu-bs.de/download/repository.gpg.key | sudo apt-key add -
--2018-01-03 06:04:33--  http://jenkins.ibr.cs.tu-bs.de/download/repository.gpg.key
Resolving jenkins.ibr.cs.tu-bs.de (jenkins.ibr.cs.tu-bs.de)... 134.169.35.161, 2001:638:602:1183:5054:ff:fe06:be74
Connecting to jenkins.ibr.cs.tu-bs.de (jenkins.ibr.cs.tu-bs.de)|134.169.35.161|:80... connected.
HTTP request sent, awaiting response... 301 Moved Permanently
Location: https://jenkins.ibr.cs.tu-bs.de/download/repository.gpg.key [following]
--2018-01-03 06:04:34--  https://jenkins.ibr.cs.tu-bs.de/download/repository.gpg.key
Connecting to jenkins.ibr.cs.tu-bs.de (jenkins.ibr.cs.tu-bs.de)|134.169.35.161|:443... connected.
HTTP request sent, awaiting response... 403 Forbidden
2018-01-03 06:04:36 ERROR 403: Forbidden.

gpg: no valid OpenPGP data found.