3. В шаблоне Товары найдите:
{% FOR images %}{% IF goods.images.index = 2 %} <img src="{goods.images.ICON}" class="goods-image-icon" alt="{goods.NAME}"> {% ENDIF %}{% ENDFOR %}
замените на:
{% FOR images %}{% IF goods.images.length = 2 %} {% IF goods.images.index = 2 %} <img src="{goods.images.ICON}" class="goods-image-icon" alt="{goods.NAME}"> {% ENDIF %} {% ELSE %} {% IF goods.images.index = 1 %} <img src="{goods.images.ICON}" class="goods-image-icon" alt="{goods.NAME}"> {% ENDIF %} {% ENDIF %}{% ENDFOR %}