update-rc.d: warning: start and stop actions are no longer supported; falling back to defaults

I have recently installed snmpd on my Ubuntu 16.04 VM. I was trying out few things and at some point I wanted to restart the application using

service snmpd restart

It did not work, giving the message undefined symbol: smux_listen_sd
I serched the internet for a possible reasons, but the main solution I was given was that there is another installed version that I need to remove. I looked for previous versions, there was nothing.

So after couple of uninstallations and re installations, it now works.

However, at the end of the installation, I noticed the message:

update-rc.d: warning: start and stop actions are no longer supported; falling back to defaults
update-rc.d: warning: stop runlevel arguments (1) do not match snmpd Default-Stop values (0 1 6)

Does that mean I can no longer use service ... start or systemctl ... start?
If so, how should I start and stop an app?