I installed dokuwiki a few weeks ago on a new Raspberry Stretch PHP7, etc. all working fine.
However, I noticed a daily error message by cron sent by email:
Subject: Cron <root@rpi32> test -x /usr/sbin/anacron || ( cd / && run-parts --report /etc/cron.daily )
Bofy: /etc/cron.daily/dokuwiki:
/etc/cron.daily/dokuwiki: 57: cd: can't cd to /var/lib/dokuwiki
run-parts: /etc/cron.daily/dokuwiki exited with return code 2
Any ideas what I need to fix to either make this work or make it disappear?