🐛 sheet: fix display when thumbnail is missing (refs #6523)

1 files changed, 2 insertions, 2 deletions

diff --git a/ishtar_common/templates/ishtar/blocks/window_image.html b/ishtar_common/templates/ishtar/blocks/window_image.html
index ccdb4b332..702947a4d 100644
--- a/ishtar_common/templates/ishtar/blocks/window_image.html
+++ b/ishtar_common/templates/ishtar/blocks/window_image.html
@@ -30,13 +30,13 @@
     {% endif %}{% endfor %}
 </div>
 <div id="lightgallery-{{window_id}}">
-    {% if item.main_image and item.main_image.image %}{% with image=item.main_image %}
+    {% if item.main_image and item.main_image.image and item.main_image.thumbnail %}{% with image=item.main_image %}
     <a data-sub-html="#lightgallery-{{window_id}}-caption-0"
        href="{{image.image.url}}" class="window-main-image">
         <img class='card-img-top' src="{{image.thumbnail.url}}">
     </a>
     {% endwith %}{% endif %}
-    {% for image in item.images_without_main_image.all %}{% if image.image %}
+    {% for image in item.images_without_main_image.all %}{% if image.image and image.thumbnail %}
     <a data-sub-html="#lightgallery-{{window_id}}-caption-{{forloop.counter}}"
        href="{{image.image.url}}" class="lightgallery-subimage">
         <img src="{{image.thumbnail.url}}">