added clear failed transaction

lib/ui/pages/home_page.dart

@@ -118,6 +118,7 @@ class _HomePageState extends State<HomePage> implements AlertDialogCallback {
       infoMulti,
       companyAddress,
       num,
+      reffNo,
       plainCardExpirity;
 
   Map<String, dynamic>? dataQris;
@@ -481,7 +482,7 @@ class _HomePageState extends State<HomePage> implements AlertDialogCallback {
     }
     paymentMethod = 'Qris';
     var infoPaymentNotes = jsonDecode(info);
-    var reffNo = trxId.toString();
+    reffNo = trxId.toString();
     paymentProvider = "";
     paymentNotes = "reffNo: $reffNo\nprovider: $paymentProvider";
 
@@ -752,6 +753,8 @@ class _HomePageState extends State<HomePage> implements AlertDialogCallback {
                                   checkCountZero = false;
                                   timer?.cancel();
                                   isShowingDialog = true;
+                                  trxId = "";
+                                  reffNo = "";
                                   _showTap();
                                   tapDial();
                                 });