How to fix lists on Bitrix sites 24?

Question

1C-Bitrix

I did not know what tag to use, I think people from the tags I used will understand what I mean.
In general, I create lists for site 24 in the .description.php file

<?php
if (!defined('B_PROLOG_INCLUDED') || B_PROLOG_INCLUDED !== true)
{
    die();
}

use \Bitrix\Main\Localization\Loc;

return array(
    'block' => array(
        'name' => "Обложка лендинга-2",
        'section' => 'other',
    ),
    'nodes' => array(
        '.small' => array(
            'name' => "Заголовок",
            'type' => 'text',
        ),
        '.ribbon img' => array(
            'name' => "Лого 1-колонки",
            'type' => 'img',
        ),
        '.one-colums' => array(
            'name' => "Название 1-колонки",
            'type' => 'text',
        ),
        '.two-colums' => array(
            'name' => "Название 2-колонки",
            'type' => 'text',
        ),
        '.list_colums' => array(
            'name' => "Строка",
            'type' => 'text',
        ),
        '.list_colums_two' => array(
            'name' => "Название строчки",
            'type' => 'text',
        ),
        '#landing-main' => array(
            'name' => "Фон",
            'type' => 'img',
        ),
    ),
    'cards' => array(
        '.list_colums' => array(
            'name' => "Изменить",
            'label' => array('.list_colums'),
        ),
        '.list_colums_two' => array(
            'name' => "Список",
            'label' => array('.list_colums_two'),
        ),
    ),
);

and the html itself:

<div id="landing-main" style="background: url(http://s24.bxdemo.ru/l1/img/bg-landing-main.png) 50% 0 no-repeat, #f9f9f9 url(http://s24.bxdemo.ru/l1/img/pattern.jpg) 50% 0;">
<section id="comparison">
    <div class="container">
      <h2 class="small">В чем преимущество обращения к выставке домов, а не искать компанию самостоятельно?</h2>
      <table class="good">
        <thead>
          <tr>
            <th class="one-colums">
              <div class="ribbon"><img src="http://s24.bxdemo.ru/l1/img/logo3.png" alt=""></div>
              Найти компанию на выставке
              <div class="thumb"><svg xmlns="http://www.w3.org/2000/svg" class="icon"><use xlink:href="http://s24.bxdemo.ru/l1/img/icons.svg#thumb"></use></svg></div>
            </th>
          </tr>
        </thead>
<tbody>
          <tr class="list_colums">
            <td><svg xmlns="http://www.w3.org/2000/svg" class="icon"><use xlink:href="http://s24.bxdemo.ru/l1/img/icons.svg#check4"></use></svg>Получение сразу несколько расчетов от разных компаний</td>
          </tr>
        </tbody>
      </table>

So, when you add a new list with the help of a plus sign and refresh the page after, everything flies and gives out
what could be the problem?
As far as I know, there is very little documentation on this topic, so I ask you to find an error in the code if there is one.