This morning I started up my Koha test VM (Debian 8) and around 7:35 plack stopped working. I believe this is the logrotate/zebra death issue mentioned here: https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=16885 I am running 16.05.04.01 and verified that the patch shown in the above bug is present in /usr/sbin/koha-stop-zebra. In an email to this list a couple of months ago, Radek Siman suggested disabling anacron as follows: 1) open /etc/cron.d/anacron and add a # to turn off the line starting with 30 7 * * * ....anacron... 2) mv /usr/sbin/anacron /usr/sbin/anacron-temporarily-renamed I'm going to do this until I find a better solution.