Error message

• Warning: Cannot modify header information - headers already sent by (output started at /www/doc/www.atelierbielybaroque.sk/www/includes/common.inc:2748) in drupal_send_headers() (line 1232 of /www/doc/www.atelierbielybaroque.sk/www/includes/bootstrap.inc).
• PDOException: SQLSTATE[42000]: Syntax error or access violation: 1142 INSERT command denied to user 'atelierbie'@'31.15.10.62' for table 'watchdog': 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] => Attempting to re-run cron while it is already running. [:db_insert_placeholder_3] => a:0:{} [:db_insert_placeholder_4] => 4 [:db_insert_placeholder_5] => [:db_insert_placeholder_6] => http://www.atelierbielybaroque.sk/kontakt [:db_insert_placeholder_7] => [:db_insert_placeholder_8] => 3.236.84.188 [:db_insert_placeholder_9] => 1628158623 ) in dblog_watchdog() (line 160 of /www/doc/www.atelierbielybaroque.sk/www/modules/dblog/dblog.module).