Cron job finished with errors

Getting an error in the log: Cron job running every minute.
Type: Errors
Severity: Error Error
Date: 2/5/2014 6:31 am
Message: Unhandled System_Db_Exception: in /home/rvsuper8cpanel/public_html/webissues/system/db/mysqli/engine.inc.php on line 287
Stack trace:
#0 /home/rvsuper8cpanel/public_html/webissues/system/db/mysqli/engine.inc.php(110): System_Db_Mysqli_Engine->handleError(Object(mysqli))
#1 /home/rvsuper8cpanel/public_html/webissues/system/db/mysqli/engine.inc.php(90): System_Db_Mysqli_Engine->executeStatement('SELECT a.alert_...', Array)
#2 /home/rvsuper8cpanel/public_html/webissues/system/db/connection.inc.php(256): System_Db_Mysqli_Engine->query('SELECT a.alert_...', Array)
#3 /home/rvsuper8cpanel/public_html/webissues/system/db/connection.inc.php(289): System_Db_Connection->queryArgs('SELECT a.alert_...', Array)
#4 /home/rvsuper8cpanel/public_html/webissues/system/db/connection.inc.php(277): System_Db_Connection->queryTableArgs('SELECT a.alert_...', Array)
#5 /home/rvsuper8cpanel/public_html/webissues/system/api/alertmanager.inc.php(463): System_Db_Connection->queryTable('SELECT a.alert_...', 3, 1)
#6 /home/rvsuper8cpanel/public_html/webissues/cron/job.php(137): System_Api_AlertManager->getAlertsToEmail(false)
#7 /home/rvsuper8cpanel/public_html/webissues/cron/job.php(72): Cron_Job->sendNotificationEmails()
#8 /home/rvsuper8cpanel/public_html/webissues/system/core/application.inc.php(210): Cron_Job->execute()
#9 /home/rvsuper8cpanel/public_html/webissues/system/bootstrap.inc.php(130): System_Core_Application->run()
#10 /home/rvsuper8cpanel/public_html/webissues/cron/job.php(690): System_Bootstrap::run('Cron_Job')
#11 {main}
User name: Murtaza
Host name: 192.186.222.xxx