Hitch installation completed with insserv errors. Unable to start hitch
Solution 1:
Maybe you're better off using the official packages instead. You can find them on https://packagecloud.io/varnishcache/hitch.
These packages are maintained by Varnish Software, contain a more recent version of Hitch, and are regularly updated.
There are Ubuntu packages available for 16.04, or more recent versions.
The following commands will get the job done:
$ curl -s https://packagecloud.io/install/repositories/varnishcache/hitch/script.deb.sh | sudo bash
$ sudo apt install -y hitch