The source of this problem is the '' in the query:
Quote:
SELECT id,uid,summary,UNIX_TIMESTAMP(dtstamp) AS udtstamp, start, end, allday, start_date, end_date, '' FROM x_pical_event WHERE admission>0 AND (rrule_pid=0 OR rrule_pid=id) AND (1) AND (1) AND (1) AND (uid=1) ORDER BY dtstamp DESC LIMIT 0,5;