fix(develop): 修复报错

@@ -49,10 +49,12 @@ public function publicAudition(Request $request)
             //查询符合条件活动
             $data = $query->get(['id']);
             //插入有序集合中
+            if ($data->isNotEmpty()){
                 Redis::client()->del($key);
                 Redis::client()->zAdd($key, ...$data->map(fn(ActivitySubmitWork $item) => [random_int(50, 200), $item->getKey()])->flatten()->toArray());
                 Redis::client()->expire($key, 2 * 60 * 60);
             }
+        }
         $recommendIds = Redis::client()->zRevRange($key, $startIndex, $endIndex);
 
         $data = $query->with(['activity:id,song_name,sub_title,cover', 'user:id,nick_name,real_name,avatar', 'user.styleTags:id,name'])