update

@@ -111,7 +111,7 @@ class RankDataLogic extends BaseLogic
 
         //外链引荐域名
         $recomm_domain = $recomm_domain ? $recomm_domain->toArray() : [];
-        $recomm_domain['data'] = Collection::make($recomm_domain['data'])->sortBy('backlinks_num')->all();
+        $recomm_domain['data'] = Collection::make($recomm_domain['data'] ?? [])->sortBy('backlinks_num')->all();
         $data['external_links_domain_chat'] = [
             'labels' => array_map(function ($item) {
                 return Str::substrReplace($item, '***', 2, 3);