small fix

api.py

@@ -31,7 +31,7 @@ def load_data():
     
     data_all = utils.preload_data()
     
-    data_24h = (pd.Timestamp.now() -  data_all['updated_at'].apply(lambda x: pd.Timestamp(x)) < pd.Timedelta('1 days'))
+    data_24h = data_all[(pd.Timestamp.now() -  data_all['updated_at'].apply(lambda x: pd.Timestamp(x)) < pd.Timedelta('1 days'))]
 
     reload_timestamp = datetime.datetime.now().strftime('%D %T')