Randomly I keep getting duplicate key errors and log in one case shows following:
What could this be due to?
#0 /home/dlifein/public_html/forums/library/Zend/Db/Statement.php(297): Zend_Db_Statement_Mysqli->_execute(Array)
#1 /home/dlifein/public_html/forums/library/Zend/Db/Adapter/Abstract.php(479): Zend_Db_Statement->execute(Array)
#2 /home/dlifein/public_html/forums/library/Zend/Db/Adapter/Abstract.php(574): Zend_Db_Adapter_Abstract->query('INSERT INTO `xf...', Array)
#3 /home/dlifein/public_html/forums/library/XenForo/DataWriter.php(1624): Zend_Db_Adapter_Abstract->insert('xf_thread_watch', Array)
#4 /home/dlifein/public_html/forums/library/XenForo/DataWriter.php(1613): XenForo_DataWriter->_insert()
#5 /home/dlifein/public_html/forums/library/XenForo/DataWriter.php(1405): XenForo_DataWriter->_save()
#6 /home/dlifein/public_html/forums/library/XenForo/Model/ThreadWatch.php(506): XenForo_DataWriter->save()
#7 /home/dlifein/public_html/forums/library/XenForo/Model/ThreadWatch.php(549): XenForo_Model_ThreadWatch->setThreadWatchStateWithUserDefault(2, 595, 'watch_email')
#8 /home/dlifein/public_html/forums/library/XenForo/ControllerPublic/Thread.php(562): XenForo_Model_ThreadWatch->setVisitorThreadWatchStateFromInput(595, Array)
#9 /home/dlifein/public_html/forums/library/XenForo/FrontController.php(347): XenForo_ControllerPublic_Thread->actionAddReply()
#10 /home/dlifein/public_html/forums/library/XenForo/FrontController.php(134): XenForo_FrontController->dispatch(Object(XenForo_RouteMatch))
#11 /home/dlifein/public_html/forums/index.php(13): XenForo_FrontController->run()
#12 {main}
What could this be due to?