sudo nano /etc/polkit-1/rules.d/90-ecap.rules
polkit.addRule(function(action, subject) {
    if (
        subject.user == "heco" &&
        action.id == "org.freedesktop.systemd1.manage-units" &&
        action.lookup("unit") == "ecap.service"
    ) {
        return polkit.Result.YES;
    }
});

sudo mkdir /etc/polkit-1/rules.d
sudo chmod 777 /etc/polkit-1/rules.d
sudo touch /etc/polkit-1/rules.d/90-ecap.rules
sudo chmod 777 /etc/polkit-1/rules.d/90-ecap.rules

sudo systemctl restart polkit
systemctl stop ecap
systemctl start ecap
systemctl restart ecap