how restart qBittorrent ?

[asusabc123]

Hi

When I do : exit from qBittorrent app > to stop any traffic....

1)
and after that ... how can I restart this service ?
Because after I do Exit > then web client is not listening anymore on http://NAS_IP:8181/

And in Services : > there is no Qbittorrent service also


2)
How can I restart service from command line ?

is it possible like /etc/init.d/qbit start ?

A.