sign fix

app/Http/Controllers/Wap/Pay/MonthOrderController.php

@@ -359,7 +359,7 @@ class MonthOrderController extends Controller
             'operate_time'=>$xml['operate_time'],
             'contract_id'=>$xml['contract_id'],
             'contract_expired_time'=>$xml['contract_expired_time'],
-            'contract_termination_mode'=>$xml['contract_termination_mode'],
+            'contract_termination_mode'=>isset($xml['contract_termination_mode'])?$xml['contract_termination_mode']:0,
             'request_serial'=>$xml['request_serial']
 
         ]);