Today I checked HestiaCP on my Hostwinds server and realized that it has been upgraded automatically as the Hestia theme and log appeared to be different from before. I clicked a few buttons and links to check around. Since I noticed that I could not receive email at an email address for a site on the server, I cliked on the Server section to check if all services were working OK. Indeed, the dovecot service was not running. So I tried to restart the service, only to find that I could not restart it!
Rebooting did not fix the problem.
What is going on?