diff --git a/cw_core/lib/node.dart b/cw_core/lib/node.dart
index 1f2cfe7d2..886add3cd 100644
--- a/cw_core/lib/node.dart
+++ b/cw_core/lib/node.dart
@@ -36,7 +36,7 @@ class Node extends HiveObject with Keyable {
   static const typeId = 1;
   static const boxName = 'Nodes';
 
-  @HiveField(0)
+  @HiveField(0, defaultValue: '')
   late String uriRaw;
 
   @HiveField(1)
@@ -45,7 +45,7 @@ class Node extends HiveObject with Keyable {
   @HiveField(2)
   String? password;
 
-  @HiveField(3)
+  @HiveField(3, defaultValue: 0)
   late int typeRaw;
 
   @HiveField(4)
diff --git a/cw_core/lib/unspent_coins_info.dart b/cw_core/lib/unspent_coins_info.dart
index 420517939..d825db279 100644
--- a/cw_core/lib/unspent_coins_info.dart
+++ b/cw_core/lib/unspent_coins_info.dart
@@ -15,16 +15,16 @@ class UnspentCoinsInfo extends HiveObject {
   static const boxName = 'Unspent';
   static const boxKey = 'unspentBoxKey';
 
-  @HiveField(0)
+  @HiveField(0, defaultValue: '')
   String walletId;
 
-  @HiveField(1)
+  @HiveField(1, defaultValue: '')
   String hash;
 
-  @HiveField(2)
+  @HiveField(2, defaultValue: false)
   bool isFrozen;
 
-  @HiveField(3)
+  @HiveField(3, defaultValue: false)
   bool isSending;
 
   @HiveField(4)
diff --git a/cw_core/lib/wallet_info.dart b/cw_core/lib/wallet_info.dart
index 66ed1e932..a25702cf7 100644
--- a/cw_core/lib/wallet_info.dart
+++ b/cw_core/lib/wallet_info.dart
@@ -33,31 +33,31 @@ class WalletInfo extends HiveObject {
   static const typeId = 4;
   static const boxName = 'WalletInfo';
 
-  @HiveField(0)
+  @HiveField(0, defaultValue: '')
   String id;
 
-  @HiveField(1)
+  @HiveField(1, defaultValue: '')
   String name;
 
   @HiveField(2)
   WalletType type;
 
-  @HiveField(3)
+  @HiveField(3, defaultValue: false)
   bool isRecovery;
 
-  @HiveField(4)
+  @HiveField(4, defaultValue: 0)
   int restoreHeight;
 
-  @HiveField(5)
+  @HiveField(5, defaultValue: 0)
   int timestamp;
 
-  @HiveField(6)
+  @HiveField(6, defaultValue: '')
   String dirPath;
 
-  @HiveField(7)
+  @HiveField(7, defaultValue: '')
   String path;
 
-  @HiveField(8)
+  @HiveField(8, defaultValue: '')
   String address;
 
   @HiveField(10)
diff --git a/lib/buy/order.dart b/lib/buy/order.dart
index 16dfbb4e0..387fbcd34 100644
--- a/lib/buy/order.dart
+++ b/lib/buy/order.dart
@@ -30,10 +30,10 @@ class Order extends HiveObject {
   static const boxName = 'Orders';
   static const boxKey = 'ordersBoxKey';
 
-  @HiveField(0)
+  @HiveField(0, defaultValue: '')
   String id;
 
-  @HiveField(1)
+  @HiveField(1, defaultValue: '')
   String transferId;
 
   @HiveField(2)
@@ -42,7 +42,7 @@ class Order extends HiveObject {
   @HiveField(3)
   String? to;
 
-  @HiveField(4)
+  @HiveField(4, defaultValue: '')
   late String stateRaw;
 
   TradeState get state => TradeState.deserialize(raw: stateRaw);
@@ -50,16 +50,16 @@ class Order extends HiveObject {
   @HiveField(5)
   DateTime createdAt;
 
-  @HiveField(6)
+  @HiveField(6, defaultValue: '')
   String amount;
 
-  @HiveField(7)
+  @HiveField(7, defaultValue: '')
   String receiveAddress;
 
-  @HiveField(8)
+  @HiveField(8, defaultValue: '')
   String walletId;
 
-  @HiveField(9)
+  @HiveField(9, defaultValue: 0)
   late int providerRaw;
 
   BuyProviderDescription get provider =>
diff --git a/lib/entities/contact.dart b/lib/entities/contact.dart
index b76e4de43..e111429ca 100644
--- a/lib/entities/contact.dart
+++ b/lib/entities/contact.dart
@@ -17,13 +17,13 @@ class Contact extends HiveObject with Keyable {
   static const typeId = 0;
   static const boxName = 'Contacts';
 
-  @HiveField(0)
+  @HiveField(0, defaultValue: '')
   String name;
 
-  @HiveField(1)
+  @HiveField(1, defaultValue: '')
   String address;
 
-  @HiveField(2)
+  @HiveField(2, defaultValue: 0)
   late int raw;
 
   CryptoCurrency get type => CryptoCurrency.deserialize(raw: raw);
diff --git a/lib/entities/transaction_description.dart b/lib/entities/transaction_description.dart
index 868077733..86d6b043a 100644
--- a/lib/entities/transaction_description.dart
+++ b/lib/entities/transaction_description.dart
@@ -10,7 +10,7 @@ class TransactionDescription extends HiveObject {
   static const boxName = 'TransactionDescriptions';
   static const boxKey = 'transactionDescriptionsBoxKey';
 
-  @HiveField(0)
+  @HiveField(0, defaultValue: '')
   String id;
 
   @HiveField(1)
diff --git a/lib/exchange/trade.dart b/lib/exchange/trade.dart
index 0f6425ecc..99b73e789 100644
--- a/lib/exchange/trade.dart
+++ b/lib/exchange/trade.dart
@@ -40,26 +40,26 @@ class Trade extends HiveObject {
   static const boxName = 'Trades';
   static const boxKey = 'tradesBoxKey';
 
-  @HiveField(0)
+  @HiveField(0, defaultValue: '')
   String id;
 
-  @HiveField(1)
+  @HiveField(1, defaultValue: 0)
   late int providerRaw;
 
   ExchangeProviderDescription get provider =>
       ExchangeProviderDescription.deserialize(raw: providerRaw);
 
-  @HiveField(2)
+  @HiveField(2, defaultValue: 0)
   late int fromRaw;
 
   CryptoCurrency get from => CryptoCurrency.deserialize(raw: fromRaw);
 
-  @HiveField(3)
+  @HiveField(3, defaultValue: 0)
   late int toRaw;
 
   CryptoCurrency get to => CryptoCurrency.deserialize(raw: toRaw);
 
-  @HiveField(4)
+  @HiveField(4, defaultValue: '')
   late String stateRaw;
 
   TradeState get state => TradeState.deserialize(raw: stateRaw);
@@ -70,7 +70,7 @@ class Trade extends HiveObject {
   @HiveField(6)
   DateTime? expiredAt;
 
-  @HiveField(7)
+  @HiveField(7, defaultValue: '')
   String amount;
 
   @HiveField(8)