obrázek je nepovinný

filmovy-festival/home/models.py

@@ -11,7 +11,7 @@ from wagtail.admin.edit_handlers import FieldPanel, InlinePanel
 class HomePage(Page):
     body = RichTextField(blank=True)
     image = models.ForeignKey(
-        'wagtailimages.Image', on_delete=models.PROTECT, related_name='+'
+        'wagtailimages.Image', on_delete=models.PROTECT, null=True, related_name='+'
     )
 
     content_panels = Page.content_panels + [