How to remove expressvpn daemon?

I uninstalled ExpressVPN on Linux a long time ago, but I have noticed in syslog that there was still an expressvpn service trying to connect every couple of minutes, which is strange since I uninstalled the program.

May 30 15:42:00 COMPUTER-NAME systemd[1]: expressvpn.service: Main process exited, code=exited, status=203/EXECMay 30 15:42:00 COMPUTER-NAME systemd[1]: expressvpn.service: Failed with result 'exit-code'.May 30 15:42:05 COMPUTER-NAME systemd[1]: expressvpn.service: Service hold-off time over, scheduling restart.May 30 15:42:05 COMPUTER-NAME systemd[1]: expressvpn.service: Scheduled restart job, restart counter is at 1761.May 30 15:42:05 COMPUTER-NAME systemd[25122]: expressvpn.service: Failed to execute command: No such file or directoryMay 30 15:42:05 COMPUTER-NAME systemd[25122]: expressvpn.service: Failed at step EXEC spawning /usr/sbin/expressvpnd: No such file or directory

I have tried to:

sudo update-rc.d -f expressvpn disable

sudo update-rc.d -f expressvpn.service disable

But it did not work.