As far as I understand, the application “harbour-situations2application” when invoked graphically or from the terminal without any argument is only a graphical frontend to configure the user service running in background “harbour-situations2application.service”. This service “talks” with a server (also launched in the background as a root service) “situations-sonar”. Being launched as root, this service is allowed to enable/disable wifi, bluetooth, set airplane mode…
It seems that in your case the user service has ended (I don’t know why). You can try to restart it with:
systemctl --user start harbour-situations2application