Trying to install insync on ubuntu 16.04 but get these error messages:
W: The repository 'http://apt.insynchq.com/ubuntu 16.04 Release' does not have a Release file.
N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.
E: Failed to fetch http://apt.insynchq.com/ubuntu/dists/16.04/non-free/binary-amd64/Packages 403 Forbidden
E: Some index files failed to download. They have been ignored, or old ones used instead
Cannot see what is wrong with this. Here is the string in insync.list
"deb http://apt.insynchq.com/ubuntu 16.04 non-free contrib"