How to make a cart withdrawal on shopkeeper3?

Question

MODX

*explaining shopmodx doesn't work for me. I'm
developing a shop on the third shopkeeper. Faced difficulties in the presence of sensible documentation.
I found only one link and one no video on YouTube
. Maybe someone saw sensible documentation or a normal article, otherwise they already got copy-paste from habra about differences in versions.
The bottom line - I call the snippet as it is written [
it cannot load
the chunk with the product looks like this:

<section class='col-sm-4 col-md-3 tovar shk-item'>
          <form action="" method="post">
          <figure>
                <div class='image-hover'><a href=''>ПОДРОБНЕЕ</a>
                </div>
              <div class='image' id='tovar3'></div>
              <figcaption>
                  <h2></h2>
                    <h3 class="shk-price"></h3>
                    <div class='razmer-hover'><h5>Размеры</h5>
                    <p>
                        <span>38</span>
                        <span>39</span>
                        <span>40</span>
                        <span>41</span>
                        <span>42</span>
                        <span>43</span>
                    </p>
                    </div>
              </figcaption>
          </figure>
            <fieldset>
                <input type="hidden" name="shk-id" value="604476" />
                <input type="hidden" name="shk-name" value="" />
                <input type="hidden" name="shk-count" value="1" />
                <div class="product-price">
                    <button type="submit" class="shk-but">В корзину</button>
                </div>
            </fieldset>
            </form>
      </section>

Maybe I forgot about something?
(I am developing an online store on the Revo for the first time, before that I did it on the Evo also on the Shopkeeper)

Answer 1

figured out the wrong snippet