diff --git a/unipay/providers/wechat.py b/unipay/providers/wechat.py
index cf8db82..b99b4e8 100644
--- a/unipay/providers/wechat.py
+++ b/unipay/providers/wechat.py
@@ -174,7 +174,10 @@ class WechatGateway(Gateway):
 					"Content-Type": "application/json"
 				}) as resp:
 					ret = await resp.json()
-					debug(f'{ret=}')
+					url = ret.get("h5_url")
+					if url is None:
+						e = Exception(f'{ret=} error')
+						raise e
 					return ret.get("h5_url")
 			except Exception as e:
 				exception(f'{e}, {url=}, {body_str=}, {auth=}')