monitoring -> events

PHP Notice: Undefined index: clock in /usr/local/apache2/htdocs/trunk/include/triggers.inc.php on line 1392, referer: http://localhost/trunk/events.php?sid=e46d02a6379f7d2c&form=1&form_refresh=1&nav_time=1231316220&trigger
id=0&hide_unknown=0&nav_day=07&nav_month=1&nav_year=2009&nav_hour=10&nav_minute=17&trigger=&filter_set=Filter&start=990
PHP Warning: mysql_fetch_assoc(): supplied argument is not a valid MySQL result resource in /usr/local/apache2/htdocs/trunk/include/db.inc.php on line 546, referer: http://localhost/trunk/events.php?sid=e46d02a6379f7d2c&for
m=1&form_refresh=1&nav_time=1231316220&triggerid=0&hide_unknown=0&nav_day=07&nav_month=1&nav_year=2009&nav_hour=10&nav_minute=17&trigger=&f
ilter_set=Filter&start=990
Warning: mysql_free_result(): supplied argument is not a valid MySQL result resource in /usr/local/apache2/htdocs/trunk/include/db.inc.php on line 548, referer: http://localhost/trunk/events.php?sid=e46d02a6379f7d2c&for
m=1&form_refresh=1&nav_time=1231316220&triggerid=0&hide_unknown=0&nav_day=07&nav_month=1&nav_year=2009&nav_hour=10&nav_minute=17&trigger=&f
ilter_set=Filter&start=990

and :

Error in query [select value from history_uint where itemid=22238 and clock<= order by itemid,clock desc LIMIT 1 OFFSET 0] [You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'order by itemid,clock desc LIMIT 1 OFFSET 0' at line 1]