I have run sudo apt-get update and upgrade, but get the following
W: Failed to fetch http://packages.netrunner-os.com/dists/frontier-14/InRelease Unable to find expected entry ‘unstable/binary-i386/Packages’ in Release file (Wrong sources.list entry or malformed file)
W: Failed to fetch http://ppa.launchpad.net/netrunner-os/frontier-14-packages/ubuntu/dists/frontier-14/main/binary-i386/Packages 404 Not Found
E: Some index files failed to download. They have been ignored, or old ones used instead.
I know this issue has been dealt with before, but I cannot find anything which solves it. So any help would be appreciated.