Although I doubt lipstick is the right service, I’d try it first:
systemctl --user status lipstick.service
There is the ofono service (telephony) which might be worth restarting as a test.
I’m not sure which services are running for you (try systemctl list-unit-files, it’ll be different for me since I’m on community) but maybe a pulseaudio related service shows up?
EDIT: errr, pulseaudio.service would be ,my first step, then, lipstick.