Klaviyo's back in stock button displaying even on products in stock

[contactdaiquiri]

Hi everyone,

I installed properly Klaviyo's back in stock flow + button following the tutorial but it’s displaying on product pages that are actually in stock. Can somebody help ? 

Theme: Dawn 6.0.2

Preview link: https://01ygsgyh3tco8v4e-66207744226.shopifypreview.com

Example screenshot: 

Code provided by Klaviyo :

    <script src="https://a.klaviyo.com/media/js/onsite/onsite.js"></script>
<script>
    var klaviyo = klaviyo || [];
    klaviyo.init({
      account: "WyXC37",
      platform: "shopify"
    });
    klaviyo.enable("backinstock",{ 
    trigger: {
      product_page_text: "Notify Me When Available",
      product_page_class: "btn",
      product_page_text_align: "center",
      product_page_margin: "0px",
      replace_anchor: false
    },
    modal: {
     headline: "{product_name}",
     body_content: "Prévenez-moi lorsque ce bijou est à nouveau disponible.",
     email_field_label: "Email",
     button_label: "ME PRÉVENIR",
     subscription_success_label: "Nous vous préviendrons lorsque ce bijou sera de retour.",
     footer_content: '',
     additional_styles: "@import url('https://fonts.googleapis.com/css?family=Helvetica+Neue');",
     drop_background_color: "#000",
     background_color: "#fff",
     text_color: "#222",
     button_text_color: "#fff",
     button_background_color: "#D0DF00",
     close_button_color: "#ccc",
     error_background_color: "#fcd6d7",
     error_text_color: "#C72E2F",
     success_background_color: "#d3efcd",
     success_text_color: "#1B9500"
    }
  });
</script>