diff --git a/unipay/paylog.py b/unipay/paylog.py
index d3a43fc..1bb672c 100644
--- a/unipay/paylog.py
+++ b/unipay/paylog.py
@@ -107,7 +107,7 @@ async def get_refundable_plog(request, id):
 			return None
 		origin_plog.total_amount = amt
 		return origin_plog
-	exception(f'{db.except}')
+	exception(f'{db.e_except}')
 	return None
 		
 async def new_refund_log(request, amount, origin_id):