#140

frontend/src/components/TopNav.tsx

@@ -123,7 +123,7 @@ export default (({ user }: Props) => {
 	const wikiPage = await fetchWikiPage (String (wikiId ?? ''), { })
 	const tag = await fetchTagByName (wikiPage.title)
 
-	setPostCount (tag.postCount)
+	setPostCount (tag?.postCount ?? 0)
       }
       catch
       {