Error message

• Warning: Cannot modify header information - headers already sent by (output started at /mnt/hosts/h1169086/www/www.placeboforschung.de/v2/includes/bootstrap.inc:1376) in drupal_send_headers() (line 1224 of /mnt/hosts/h1169086/www/www.placeboforschung.de/v2/includes/bootstrap.inc).
• PDOException: SQLSTATE[HY000]: General error: 11 database disk image is malformed: INSERT INTO {watchdog} (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?); Array ( [0] => 0 [1] => cron [2] => %type: !message in %function (line %line of %file). [3] => a:6:{s:5:"%type";s:12:"PDOException";s:8:"!message";s:205:"SQLSTATE[HY000]: General error: 11 database disk image is malformed: DELETE FROM {cache_bootstrap} WHERE (cid = :db_condition_placeholder_0) ; Array ( [:db_condition_placeholder_0] => variables ) ";s:9:"%function";s:17:"cache_clear_all()";s:5:"%file";s:69:"/mnt/hosts/h1169086/www/www.placeboforschung.de/v2/includes/cache.inc";s:5:"%line";i:165;s:14:"severity_level";i:3;} [4] => 3 [5] => [6] => http://placeboforschung.de/en/node/127 [7] => [8] => 18.118.30.253 [9] => 1714830723 ) in dblog_watchdog() (line 160 of /mnt/hosts/h1169086/www/www.placeboforschung.de/v2/modules/dblog/dblog.module).