Mensaje de error

• Se ha detectado una opción ilegal. Por favor contacte al administrador del sitio
• El valor de entrada para el campo Fecha de defensa no es válido:
  El día no es válido.
  El mes no es válido.
  Exception: DateTime::__construct(): Failed to parse time string (2021-17-16T00:00:00) at position 6 (7): Unexpected character in /home/drupal_project/projects/sifp-d7/sites/all/modules/date/date_api/date_api.module:296 Stack trace: #0 /home/drupal_project/projects/sifp-d7/sites/all/modules/date/date_api/date_api.module(296): DateTime->__construct() #1 /home/drupal_project/projects/sifp-d7/sites/all/modules/date/date_api/date_api_elements.inc(809): DateObject->__construct() #2 /home/drupal_project/projects/sifp-d7/sites/all/modules/date/date_api/date_api_elements.inc(749): date_select_input_date() #3 /home/drupal_project/projects/sifp-d7/includes/form.inc(1477): date_select_validate() #4 /home/drupal_project/projects/sifp-d7/includes/form.inc(1355): _form_validate() #5 /home/drupal_project/projects/sifp-d7/includes/form.inc(1355): _form_validate() #6 /home/drupal_project/projects/sifp-d7/includes/form.inc(1193): _form_validate() #7 /home/drupal_project/projects/sifp-d7/includes/form.inc(892): drupal_validate_form() #8 /home/drupal_project/projects/sifp-d7/includes/form.inc(386): drupal_process_form() #9 /home/drupal_project/projects/sifp-d7/sites/all/modules/views/plugins/views_plugin_exposed_form.inc(169): drupal_build_form() #10 /home/drupal_project/projects/sifp-d7/sites/all/modules/views/includes/view.inc(1013): views_plugin_exposed_form->render_exposed_form() #11 /home/drupal_project/projects/sifp-d7/sites/all/modules/views/plugins/views_plugin_display_page.inc(242): view->build() #12 /home/drupal_project/projects/sifp-d7/sites/all/modules/views/includes/view.inc(1401): views_plugin_display_page->execute() #13 /home/drupal_project/projects/sifp-d7/sites/all/modules/views/views.module(600): view->execute_display() #14 /home/drupal_project/projects/sifp-d7/includes/menu.inc(527): views_page() #15 /home/drupal_project/projects/sifp-d7/index.php(21): menu_execute_active_handler() #16 {main}