Error message

• Warning: Cannot modify header information - headers already sent by (output started at /home/madc/public_html/includes/common.inc:2613) in drupal_send_headers() (line 1239 of /home/madc/public_html/includes/bootstrap.inc).
• PDOException: SQLSTATE[HY000]: General error: 2013 Lost connection to MySQL server during query: INSERT INTO {watchdog} (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (:db_insert_placeholder_0, :db_insert_placeholder_1, :db_insert_placeholder_2, :db_insert_placeholder_3, :db_insert_placeholder_4, :db_insert_placeholder_5, :db_insert_placeholder_6, :db_insert_placeholder_7, :db_insert_placeholder_8, :db_insert_placeholder_9); Array ( [:db_insert_placeholder_0] => 0 [:db_insert_placeholder_1] => cron [:db_insert_placeholder_2] => %type: !message in %function (line %line of %file). [:db_insert_placeholder_3] => a:6:{s:5:"%type";s:12:"PDOException";s:8:"!message";s:112:"SQLSTATE[HY000]: General error: 2008 MySQL client ran out of memory: SELECT * FROM `drpl_cache_form`; Array ( ) ";s:9:"%function";s:44:"backup_migrate_destination_db_mysql->query()";s:5:"%file";s:90:"/home/madc/public_html/sites/all/modules/backup_migrate/includes/destinations.db.mysql.inc";s:5:"%line";i:379;s:14:"severity_level";i:3;} [:db_insert_placeholder_4] => 3 [:db_insert_placeholder_5] => [:db_insert_placeholder_6] => http://www.meridianmadc.org/content/resources-parents [:db_insert_placeholder_7] => [:db_insert_placeholder_8] => 50.16.132.180 [:db_insert_placeholder_9] => 1371672906 ) in dblog_watchdog() (line 154 of /home/madc/public_html/modules/dblog/dblog.module).