The installation directoy used in this guide is
/home/pi/pimatic-app. If you have a different directory path you may need to change the init.d wrapper accordingly. Please, also have look at the [HowTo]
I followed different HowTos, all with the same result. And of course, my installation directory is /home/pi/pimatic-app
Also multiple installations from scratch with reinstall of the OS didn’t work for me.
If you have a look into the installer sources, you will see, that the init.d script is taken from here: https://raw.githubusercontent.com/pimatic/pimatic/master/install/pimatic-init-d and copied to /etc/init.d/pimatic
It’s the same, I’ve done.