diff --git a/lib/api/apiRecovery.dart b/lib/api/apiRecovery.dart
index 55ed6c104..1137a55c9 100644
--- a/lib/api/apiRecovery.dart
+++ b/lib/api/apiRecovery.dart
@@ -17,10 +17,11 @@ class ApiRecovery {
     return null;
   }
 
-  Future<List> queryRecoverableList(List<String> addresses) async {
+  Future<List<RecoveryInfo>> queryRecoverableList(
+      List<String> addresses) async {
     final List res = await service.queryRecoverableList(addresses);
     return res
-        .map((e) => RecoveryInfo.fromJson(Map<String, dynamic>.of(e)))
+        .map((e) => RecoveryInfo.fromJson(Map<String, dynamic>.of(e ?? {})))
         .toList();
   }
 
diff --git a/lib/api/types/recoveryInfo.dart b/lib/api/types/recoveryInfo.dart
index d38547470..91b16a160 100644
--- a/lib/api/types/recoveryInfo.dart
+++ b/lib/api/types/recoveryInfo.dart
@@ -7,8 +7,8 @@ class RecoveryInfo extends _RecoveryInfo {
     info.address = json['address'];
     info.delayPeriod = json['delayPeriod'];
     info.threshold = json['threshold'];
-    info.friends = List<String>.from(json['friends']);
-    info.deposit = BigInt.parse(json['deposit'].toString());
+    info.friends = List<String>.from(json['friends'] ?? []);
+    info.deposit = BigInt.parse((json['deposit'] ?? 0).toString());
     return info;
   }
 }
diff --git a/lib/plugin/store/balances.dart b/lib/plugin/store/balances.dart
index 6876156d2..aa0f4cc56 100644
--- a/lib/plugin/store/balances.dart
+++ b/lib/plugin/store/balances.dart
@@ -43,6 +43,8 @@ class TokenBalanceData {
     this.symbol,
     this.decimals,
     this.amount,
+    this.locked,
+    this.reserved,
     this.detailPageRoute,
   });
 
@@ -50,6 +52,8 @@ class TokenBalanceData {
   final String symbol;
   final int decimals;
   final String amount;
+  final String locked;
+  final String reserved;
 
   final String detailPageRoute;
 }