The mailing list for listmasters using Sympa

[Russ Kepler <address@concealed>]

I've had Sympa running for a long while, long enough that I don't really 
remember the details of setting it up - it's been that pain free for that 
long.  But today it's not restarting after a system failure of some kind.

As admin, I'm getting a message "Bulk mailer error" containing the text 
"Sympa 
failed to store a message for list  in the bulk mailer. You should check
log files!"

The applicable log messages seem to be:

Dec 13 21:34:18 main sympa[2287]: err mail::sending() Failed to store message 
for list 
Dec 13 21:34:18 main postfix/qmgr[1931]: 7A7AB140493: from=<sympa-
address@concealed>, size=595, nrcpt=1 (queue active)
Dec 13 21:34:18 main sympa[2287]: err List::send_global_file() 
List::send_global_file, could not send template 
/usr/share/sympa/default/mail_tt2/command_report.tt2 to address@concealed
Dec 13 21:34:18 main sympa[2287]: notice report::send_report_cmd() 
report::send_report_cmd() : Unable to send template 'command_report' to 
address@concealed

The database in mysql is still accessible from wwsympa on the web interface, 
the sympa.conf looks OK, what am I missing (likely blindingly obvious but...)