'#description' => t('Which content type should be created by Freelinking?'),
  );
  
      $nodecreate[] = freelinking_prepopulate_list_fields('nodecreate');
     if (isset($nodecreate)) {
     foreach ($nodecreate as $key => $value) {
      $options[$key] = $value['title'];           <--- line 109
   }
}

  if (empty($options)) {
    return $form;
  }