No statistics for remote hosts and SQL error in error.log

[Sebastian Helbig]

Hi,

I recently installed Monit and M/Monit and everything seems to work fine 
except I do not see any statistics for remote hosts. In error.log I get 
this every minute:

2014-08-31 04:09:00 SQLException: ERROR:  insert or update on table 
"statistics" violates foreign key constraint "statistics_serviceid_fk"
DETAIL:  Key (serviceid)=(127) is not present in table "service".
 when storing hostid 37 statistics

This is with Monit-5.8 and M/Monit-3.2.2 trial on mysql-5.6 
(mariadb-10.0.13).