Error

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Error message

Warning: Cannot modify header information - headers already sent by (output started at /home/www/drupal/index.php:1) in drupal_send_headers() (line 1217 of /home/www/drupal/includes/bootstrap.inc).
PDOException: SQLSTATE[42000]: Syntax error or access violation: 1231 Variable 'sql_mode' can't be set to the value of 'NO_AUTO_CREATE_USER' in lock_may_be_available() (line 167 of /home/www/drupal/includes/lock.inc).