added uptime monitoring

lib/screens/receipt/receipt_controller.dart

@@ -135,7 +135,9 @@ class ReceiptController extends ChangeNotifier {
       model.transaction = transaction;
       setLoading(false);
       return ApiResponse.success(transaction);
-    } catch (e) {
+    } catch (e, s) {
+      print(e);
+      print(s);
       setLoading(false);
       return ApiResponse.failure(
         "Problem fetching transaction data, are you connected to the internet?",

lib/screens/receipt/receipt_screen.dart

@@ -119,18 +119,23 @@ class _ReceiptScreenState extends State<ReceiptScreen>
   }
 
   Future<void> _fetchTransaction() async {
-    final id =
-        widget.transactionId ??
-        transactionController.model.receiptData?["id"] ??
-        receiptController.model.transaction?.id;
+    try {
+      final id =
+          widget.transactionId ??
+          transactionController.model.receiptData?["id"] ??
+          receiptController.model.transaction?.id;
 
-    if (id == null) return;
+      if (id == null) return;
 
-    final response = await receiptController.getReceiptData(id);
-    if (response.isSuccess && response.data != null) {
-      setState(() {
-        _transaction = response.data;
-      });
+      final response = await receiptController.getReceiptData(id);
+      if (response.isSuccess && response.data != null) {
+        setState(() {
+          _transaction = response.data;
+        });
+      }
+    } catch (e, s) {
+      print(e);
+      print(s);
     }
   }