Mensaje de error

• Warning: Cannot modify header information - headers already sent by (output started at /mnt/www/html/impacttrackerdnzsmv8ree/docroot/includes/common.inc:2820) en drupal_send_headers() (línea 1501 de /mnt/www/html/impacttrackerdnzsmv8ree/docroot/includes/bootstrap.inc).
• ArgumentCountError: Too few arguments to function date_feeds_set_target(), 4 passed in /mnt/www/html/impacttrackerdnzsmv8ree/docroot/sites/all/modules/feeds_xls/feeds_xls.module on line 197 and exactly 5 expected en date_feeds_set_target() (línea 57 de /mnt/www/html/impacttrackerdnzsmv8ree/docroot/sites/all/modules/feeds/mappers/date.inc).