#ERROR!

Hi everyone,
After assessing my product page, I think that using button for Size is not a good idea. I have tried to create a dropdown for it and I made it. However, I could not select any size but S. Additionally, when I added the dropdown, the product image doesn’t change when I picks another option in Color and Style categories.
I have a photo here so that I hope you can understand how is it look like.

I also have the original code of my product page in case you need further information.

{% comment %}theme-check-disable TemplateLength{% endcomment %}
{{ 'section-main-product.css' | asset_url | stylesheet_tag }}
{{ 'component-accordion.css' | asset_url | stylesheet_tag }}
{{ 'component-badge.css' | asset_url | stylesheet_tag }}
{{ 'component-price.css' | asset_url | stylesheet_tag }}
{{ 'component-rte.css' | asset_url | stylesheet_tag }}
{{ 'component-slider.css' | asset_url | stylesheet_tag }}

{{ 'slick.css' | asset_url | stylesheet_tag }}
{{ 'slick-theme.css' | asset_url | stylesheet_tag }}

{%- assign first_3d_model = product.media | where: "media_type", "model" | first -%}
{%- if first_3d_model -%}
{{ 'component-product-model.css' | asset_url | stylesheet_tag }}

{%- endif -%}

{% javascript %}
class ProductModal extends ModalDialog {
	constructor() {
		super();
	}

	hide() {
		super.hide();
		window.pauseAllMedia();
	}

	show(opener) {
		super.show(opener);
		this.showActiveMedia();
	}

	showActiveMedia() {
		this.querySelectorAll(`[data-media-id]:not([data-media-id="${this.openedBy.getAttribute("data-media-id")}"])`).forEach((element) => {
			element.classList.remove('active');
		})
		const activeMedia = this.querySelector(`[data-media-id="${this.openedBy.getAttribute("data-media-id")}"]`);
		activeMedia.classList.add('active');
		activeMedia.scrollIntoView();

		if (activeMedia.nodeName == 'DEFERRED-MEDIA' && activeMedia.querySelector('template')?.content?.querySelector('.js-youtube'))
			activeMedia.loadContent();
	}
}

customElements.define('product-modal', ProductModal);
{% endjavascript %}

{%- if first_3d_model -%}

{%- endif -%}

{% schema %}
{
   "name":"t:sections.main-product.name",
   "tag":"section",
   "class":"product-section spaced-section",
   "blocks":[
      {
         "type":"@app"
      },
      {
         "type":"text",
         "name":"t:sections.main-product.blocks.text.name",
         "settings":[
            {
               "type":"text",
               "id":"text",
               "default":"Text block",
               "label":"t:sections.main-product.blocks.text.settings.text.label"
            },
            {
               "type":"select",
               "id":"text_style",
               "options":[
                  {
                     "value":"body",
                     "label":"t:sections.main-product.blocks.text.settings.text_style.options__1.label"
                  },
                  {
                     "value":"subtitle",
                     "label":"t:sections.main-product.blocks.text.settings.text_style.options__2.label"
                  },
                  {
                     "value":"uppercase",
                     "label":"t:sections.main-product.blocks.text.settings.text_style.options__3.label"
                  }
               ],
               "default":"body",
               "label":"t:sections.main-product.blocks.text.settings.text_style.label"
            }
         ]
      },
      {
         "type":"title",
         "name":"t:sections.main-product.blocks.title.name",
         "limit":1
      },
      {
         "type":"price",
         "name":"t:sections.main-product.blocks.price.name",
         "limit":1
      },
      {
         "type":"quantity_selector",
         "name":"t:sections.main-product.blocks.quantity_selector.name",
         "limit":1
      },
      {
         "type":"variant_picker",
         "name":"t:sections.main-product.blocks.variant_picker.name",
         "limit":1,
         "settings":[
            {
               "type":"select",
               "id":"picker_type",
               "options":[
                  {
                     "value":"dropdown",
                     "label":"t:sections.main-product.blocks.variant_picker.settings.picker_type.options__1.label"
                  },
                  {
                     "value":"button",
                     "label":"t:sections.main-product.blocks.variant_picker.settings.picker_type.options__2.label"
                  }
               ],
               "default":"button",
               "label":"t:sections.main-product.blocks.variant_picker.settings.picker_type.label"
            }
         ]
      },
      {
         "type":"buy_buttons",
         "name":"t:sections.main-product.blocks.buy_buttons.name",
         "limit":1,
         "settings":[
            {
               "type":"checkbox",
               "id":"show_dynamic_checkout",
               "default":true,
               "label":"t:sections.main-product.blocks.buy_buttons.settings.show_dynamic_checkout.label",
               "info":"t:sections.main-product.blocks.buy_buttons.settings.show_dynamic_checkout.info"
            }
         ]
      },
      {
         "type":"description",
         "name":"t:sections.main-product.blocks.description.name",
         "limit":1
      },
      {
         "type":"share",
         "name":"t:sections.main-product.blocks.share.name",
         "limit":1,
         "settings":[
            {
               "type":"paragraph",
               "content":"t:sections.main-product.blocks.share.settings.featured_image_info.content"
            },
            {
               "type":"paragraph",
               "content":"t:sections.main-product.blocks.share.settings.title_info.content"
            }
         ]
      },
      {
         "type":"collapsible_tab",
         "name":"t:sections.main-product.blocks.collapsible_tab.name",
         "settings":[
            {
               "type":"text",
               "id":"heading",
               "default":"Collapsible tab",
               "info":"t:sections.main-product.blocks.collapsible_tab.settings.heading.info",
               "label":"t:sections.main-product.blocks.collapsible_tab.settings.heading.label"
            },
            {
               "type":"richtext",
               "id":"content",
               "label":"t:sections.main-product.blocks.collapsible_tab.settings.content.label"
            },
            {
               "type":"page",
               "id":"page",
               "label":"t:sections.main-product.blocks.collapsible_tab.settings.page.label"
            },
            {
               "type":"select",
               "id":"icon",
               "options":[
                  {
                     "value":"none",
                     "label":"t:sections.main-product.blocks.collapsible_tab.settings.icon.options__1.label"
                  },
                  {
                     "value":"box",
                     "label":"t:sections.main-product.blocks.collapsible_tab.settings.icon.options__2.label"
                  },
                  {
                     "value":"chat_bubble",
                     "label":"t:sections.main-product.blocks.collapsible_tab.settings.icon.options__3.label"
                  },
                  {
                     "value":"check_mark",
                     "label":"t:sections.main-product.blocks.collapsible_tab.settings.icon.options__4.label"
                  },
                  {
                     "value":"dryer",
                     "label":"t:sections.main-product.blocks.collapsible_tab.settings.icon.options__5.label"
                  },
                  {
                     "value":"eye",
                     "label":"t:sections.main-product.blocks.collapsible_tab.settings.icon.options__6.label"
                  },
                  {
                     "value":"heart",
                     "label":"t:sections.main-product.blocks.collapsible_tab.settings.icon.options__7.label"
                  },
                  {
                     "value":"iron",
                     "label":"t:sections.main-product.blocks.collapsible_tab.settings.icon.options__8.label"
                  },
                  {
                     "value":"leaf",
                     "label":"t:sections.main-product.blocks.collapsible_tab.settings.icon.options__9.label"
                  },
                  {
                     "value":"leather",
                     "label":"t:sections.main-product.blocks.collapsible_tab.settings.icon.options__10.label"
                  },
                  {
                     "value":"lock",
                     "label":"t:sections.main-product.blocks.collapsible_tab.settings.icon.options__11.label"
                  },
                  {
                     "value":"map_pin",
                     "label":"t:sections.main-product.blocks.collapsible_tab.settings.icon.options__12.label"
                  },
                  {
                     "value":"pants",
                     "label":"t:sections.main-product.blocks.collapsible_tab.settings.icon.options__13.label"
                  },
                  {
                     "value":"plane",
                     "label":"t:sections.main-product.blocks.collapsible_tab.settings.icon.options__14.label"
                  },
                  {
                     "value":"price_tag",
                     "label":"t:sections.main-product.blocks.collapsible_tab.settings.icon.options__15.label"
                  },
                  {
                     "value":"question_mark",
                     "label":"t:sections.main-product.blocks.collapsible_tab.settings.icon.options__16.label"
                  },
                  {
                     "value":"return",
                     "label":"t:sections.main-product.blocks.collapsible_tab.settings.icon.options__17.label"
                  },
                  {
                     "value":"ruler",
                     "label":"t:sections.main-product.blocks.collapsible_tab.settings.icon.options__18.label"
                  },
                  {
                     "value":"shirt",
                     "label":"t:sections.main-product.blocks.collapsible_tab.settings.icon.options__19.label"
                  },
                  {
                     "value":"shoe",
                     "label":"t:sections.main-product.blocks.collapsible_tab.settings.icon.options__20.label"
                  },
                  {
                     "value":"silhouette",
                     "label":"t:sections.main-product.blocks.collapsible_tab.settings.icon.options__21.label"
                  },
                  {
                     "value":"star",
                     "label":"t:sections.main-product.blocks.collapsible_tab.settings.icon.options__22.label"
                  },
                  {
                     "value":"truck",
                     "label":"t:sections.main-product.blocks.collapsible_tab.settings.icon.options__23.label"
                  },
                  {
                     "value":"washing",
                     "label":"t:sections.main-product.blocks.collapsible_tab.settings.icon.options__24.label"
                  }
               ],
               "default":"check_mark",
               "label":"t:sections.main-product.blocks.collapsible_tab.settings.icon.label"
            }
         ]
      },
      {
         "type":"popup",
         "name":"t:sections.main-product.blocks.popup.name",
         "settings":[
            {
               "type":"text",
               "id":"link_label",
               "default":"Pop-up link text",
               "label":"t:sections.main-product.blocks.popup.settings.link_label.label"
            },
            {
               "id":"page",
               "type":"page",
               "label":"t:sections.main-product.blocks.popup.settings.page.label"
            }
         ]
      },
      {
         "type":"badge",
         "name":"t:sections.main-product.blocks.badge.name",
         "settings":[
            {
               "type":"text",
               "id":"label",
               "label":"t:sections.main-product.blocks.badge.settings.label.label"
            },
            {
               "type":"image_picker",
               "id":"image",
               "label":"t:sections.main-product.blocks.badge.settings.image.label"
            }
         ]
      }
   ],
   "settings":[
      {
         "type":"header",
         "content":"t:sections.main-product.settings.header.content",
         "info":"t:sections.main-product.settings.header.info"
      },
      {
         "type":"checkbox",
         "id":"enable_sticky_info",
         "default":true,
         "label":"t:sections.main-product.settings.enable_sticky_info.label"
      },
      {
         "type":"checkbox",
         "id":"enable_video_looping",
         "default":false,
         "label":"t:sections.main-product.settings.enable_video_looping.label"
      }
   ]
}
{% endschema %}

{{'jquery.min.js' | asset_url | script_tag}}

If only you could send me a code for the dropdown. Thank you very much!