After upgrading to 3.4.5 from 3.4.4 I get the following error when trying to start sa-spamd:
$ sudo service sa-spamd onestart
child process  exited or timed out without signaling production of a PID file: exit 255 at /usr/local/bin/spamd line 3034.
/usr/local/etc/rc.d/sa-spamd: WARNING: failed to start spamd
This is happening in the latest pkg version as well as when built from ports.
I only tested on FreeBSD 12.2
I also tested on fresh installs of v3.4.5, same problem.
Ignore this. Needed to run sa-update. The error message was unclear.