If you experience problems with Plesk, for example, malfunctioning of a service, you can try to resolve them by restarting Plesk or the administrative web server sw-cp-server. Also, a restart is necessary to apply configuration changes that cannot be made while Plesk is running.

To restart Plesk, run the following command:

/etc/init.d/psa restart

To restart sw-cp-server, run the following command:

/etc/init.d/sw-cp-server restart