diff --git a/modules/instagram.js b/modules/instagram.js
index 1e25083..528962f 100644
--- a/modules/instagram.js
+++ b/modules/instagram.js
@@ -852,11 +852,11 @@ function parseItemlistItem(node) {
         "url": "https://www.instagram.com/p/" + node.code,
         "body": caption,
 
-        "author_id": user.id ?? owner.id ?? new MissingMappedField(""),
-        "author": user.username ?? owner.username ?? new MissingMappedField(""),
-        "author_fullname": user.full_name ?? owner.full_name ?? new MissingMappedField(""),
-        "verified": Boolean(user.is_verified),
-        "author_avatar_url": user.profile_pic_url ?? owner.profile_pic_url ?? new MissingMappedField(""),
+        "author_id": user?.id ?? owner?.id ?? new MissingMappedField(""),
+        "author": user?.username ?? owner?.username ?? new MissingMappedField(""),
+        "author_fullname": user?.full_name ?? owner?.full_name ?? new MissingMappedField(""),
+        "verified": Boolean(user?.is_verified),
+        "author_avatar_url": user?.profile_pic_url ?? owner?.profile_pic_url ?? new MissingMappedField(""),
         "coauthors": coauthors,
         "coauthor_fullnames": coauthor_fullnames,
         "coauthor_ids": coauthor_ids,