error page added

src/routes/+error.svelte

@@ -0,0 +1,5 @@
+<script>
+	import { page } from '$app/stores';
+</script>
+
+<div>{$page.status}: {$page.error.message}</div>

src/routes/+page.server.ts

@@ -19,6 +19,6 @@ export const load: PageServerLoad = async ({ url }) => {
 		});
 
 	return {
-		models: models
+		models: models ? models.models : []
 	};
 };