You should change Code: chown user:users /opt/reverstris-lite chown user:users /opt/reverstris-lite/settings.ini to Code: chown -R user:users /opt/reverstris-lite
chown user:users /opt/reverstris-lite chown user:users /opt/reverstris-lite/settings.ini
chown -R user:users /opt/reverstris-lite