When I try to update openhab I get this error:
E: Fehlschlag beim Holen von https://dl.bintray.com/openhab/apt-repo2/pool/main/3.0.2/openhab_3.0.2-1_all.deb 403 Forbidden [IP: 35.156.120.218 443]
Its german, not sure what the correct translation is, but it means something like “error while getting …”