Cacti Log Errors

Hi All,

Cacti log is giving these errors. Any idea ?

Thanks
-Azher

03/21/2013 08:26:17 PM - CMDPHP: Poller[0] ERROR: A DB Exec Failed!, 
Error:'144', SQL:"INSERT INTO `cacti`.`syslog` (logtime, priority_id, 
facility_id, host_id, message) SELECT TIMESTAMP(`date`, `time`), 
priority_id, facility_id, host_id, message FROM (SELECT date, time, 
priority_id, facility_id, host_id, message FROM syslog_incoming AS si 
INNER JOIN syslog_facilities AS sf ON sf.facility=si.facility INNER JOIN 
syslog_priorities AS sp ON sp.priority=si.priority INNER JOIN 
syslog_hosts AS sh ON sh.host=si.host WHERE status=69) AS merge'
03/21/2013 08:26:17 PM - CMDPHP: Poller[0] ERROR: A DB Exec Failed!, 
Error:'144', SQL:"DELETE FROM `cacti`.`syslog` WHERE logtime < 
'2013-02-19''
03/21/2013 08:26:17 PM - CMDPHP: Poller[0] ERROR: SQL Row Failed!, 
Error:'144', SQL:"SHOW CREATE TABLE `cacti`.`syslog`"


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