Fix if push is not available

src/js/controllers/preferencesNotifications.js

@@ -13,9 +13,13 @@ angular.module('copayApp.controllers').controller('preferencesNotificationsContr
       $scope.PNEnabledByUser = true;
       $scope.isIOSApp = isIOS && isCordova;
       if ($scope.isIOSApp) {
-        PushNotification.hasPermission(function(data) {
+        try {
-          $scope.PNEnabledByUser = data.isEnabled;
+          PushNotification.hasPermission(function(data) {
-        });
+            $scope.PNEnabledByUser = data.isEnabled;
+          });
+        } catch(e) {
+          $log.error(e);
+        };
       }
 
       $scope.pushNotifications = {
@@ -24,6 +28,7 @@ angular.module('copayApp.controllers').controller('preferencesNotificationsContr
     };
 
     $scope.pushNotificationsChange = function() {
+      if (!$scope.pushNotifications) return;
       var opts = {
         pushNotifications: {
           enabled: $scope.pushNotifications.value

src/js/services/profileService.js

@@ -318,6 +318,8 @@ angular.module('copayApp.services')
       var defaults = configService.getDefaults();
       var push = pushNotificationsService.init(root.wallet);
 
+      if (!push) return;
+
       push.on('notification', function(data) {
         if (!data.additionalData.foreground) {
           $log.debug('Push notification event: ', data.message);

src/js/services/pushNotificationsService.js

@@ -11,7 +11,12 @@ angular.module('copayApp.services')
 
     root.init = function(walletsClients) {
       var defaults = configService.getDefaults();
-      var push = PushNotification.init(defaults.pushNotifications.config);
+      try {
+        var push = PushNotification.init(defaults.pushNotifications.config);
+      } catch(e) {
+        $log.error(e);
+        return;
+      };
 
       push.on('registration', function(data) {
         $log.debug('Starting push notification registration');