FIX

class/app-storage.js

@@ -1,5 +1,5 @@
 import { AsyncStorage } from 'react-native';
-import { LegacyWallet, SegwitP2SHWallet, SegwitBech32Wallet } from './';
+import { WatchOnlyWallet, LegacyWallet, SegwitP2SHWallet, SegwitBech32Wallet } from './';
 let encryption = require('../encryption');
 
 export class AppStorage {
@@ -127,6 +127,9 @@ export class AppStorage {
             case 'segwitP2SH':
               unserializedWallet = SegwitP2SHWallet.fromJson(key);
               break;
+            case 'watchOnly':
+              unserializedWallet = WatchOnlyWallet.fromJson(key);
+              break;
             case 'legacy':
             default:
               unserializedWallet = LegacyWallet.fromJson(key);

class/legacy-wallet.js

@@ -92,7 +92,7 @@ export class LegacyWallet extends AbstractWallet {
       );
       let json = response.body;
       if (typeof json === 'undefined' || typeof json.final_balance === 'undefined') {
-        throw new Error('Could not fetch UTXO from API' + response.err);
+        throw new Error('Could not fetch balance from API: ' + response.err + ' ' + JSON.stringify(response.body));
       }
 
       this.balance = new BigNumber(json.final_balance);