diff --git a/frontend/appflowy_flutter/lib/plugins/database/application/field/field_controller.dart b/frontend/appflowy_flutter/lib/plugins/database/application/field/field_controller.dart
index ad0d1b4653..3b9ff53853 100644
--- a/frontend/appflowy_flutter/lib/plugins/database/application/field/field_controller.dart
+++ b/frontend/appflowy_flutter/lib/plugins/database/application/field/field_controller.dart
@@ -1,7 +1,5 @@
 import 'dart:collection';
 
-import 'package:flutter/foundation.dart';
-
 import 'package:appflowy/plugins/database/application/row/row_cache.dart';
 import 'package:appflowy/plugins/database/application/setting/setting_listener.dart';
 import 'package:appflowy/plugins/database/domain/database_view_service.dart';
@@ -19,9 +17,9 @@ import 'package:appflowy_backend/protobuf/flowy-database2/protobuf.dart';
 import 'package:appflowy_backend/protobuf/flowy-error/errors.pb.dart';
 import 'package:appflowy_result/appflowy_result.dart';
 import 'package:collection/collection.dart';
+import 'package:flutter/foundation.dart';
 
 import '../setting/setting_service.dart';
-
 import 'field_info.dart';
 
 class _GridFieldNotifier extends ChangeNotifier {
@@ -76,7 +74,6 @@ typedef OnReceiveFields = void Function(List<FieldInfo>);
 typedef OnReceiveFilters = void Function(List<FilterInfo>);
 typedef OnReceiveSorts = void Function(List<SortInfo>);
 
-
 class FieldController {
   FieldController({required this.viewId})
       : _fieldListener = FieldsListener(viewId: viewId),
@@ -446,9 +443,13 @@ class FieldController {
 
   /// Listen for field setting changes in the backend.
   void _listenOnFieldSettingsChanged() {
-    FieldInfo updateFieldSettings(FieldSettingsPB updatedFieldSettings) {
+    FieldInfo? updateFieldSettings(FieldSettingsPB updatedFieldSettings) {
       final List<FieldInfo> newFields = fieldInfos;
-      FieldInfo updatedField = newFields[0];
+      var updatedField = newFields.firstOrNull;
+
+      if (updatedField == null) {
+        return null;
+      }
 
       final index = newFields
           .indexWhere((field) => field.id == updatedFieldSettings.fieldId);
@@ -470,6 +471,10 @@ class FieldController {
         result.fold(
           (fieldSettings) {
             final updatedFieldInfo = updateFieldSettings(fieldSettings);
+            if (updatedFieldInfo == null) {
+              return;
+            }
+
             for (final listener in _updatedFieldCallbacks.values) {
               listener([updatedFieldInfo]);
             }
diff --git a/frontend/appflowy_flutter/lib/workspace/presentation/home/menu/sidebar/sidebar.dart b/frontend/appflowy_flutter/lib/workspace/presentation/home/menu/sidebar/sidebar.dart
index 92022daa60..136516253e 100644
--- a/frontend/appflowy_flutter/lib/workspace/presentation/home/menu/sidebar/sidebar.dart
+++ b/frontend/appflowy_flutter/lib/workspace/presentation/home/menu/sidebar/sidebar.dart
@@ -349,12 +349,7 @@ class _SidebarState extends State<_Sidebar> {
             ),
             const VSpace(8),
 
-            Column(
-              children: [
-                // ai pay button
-                _renderUpgradeSpaceButton(menuHorizontalInset),
-              ],
-            ),
+            _renderUpgradeSpaceButton(menuHorizontalInset),
 
             const VSpace(8),
             Padding(
diff --git a/frontend/appflowy_flutter/lib/workspace/presentation/notifications/widgets/notification_item.dart b/frontend/appflowy_flutter/lib/workspace/presentation/notifications/widgets/notification_item.dart
index 7076e6037e..fed0bf4390 100644
--- a/frontend/appflowy_flutter/lib/workspace/presentation/notifications/widgets/notification_item.dart
+++ b/frontend/appflowy_flutter/lib/workspace/presentation/notifications/widgets/notification_item.dart
@@ -238,22 +238,19 @@ class _NotificationContent extends StatelessWidget {
           padding: EdgeInsets.zero,
         );
 
-        return ConstrainedBox(
-          constraints: const BoxConstraints(maxWidth: 200),
-          child: Transform.scale(
-            scale: .9,
-            alignment: Alignment.centerLeft,
-            child: AppFlowyEditor(
+        return Transform.scale(
+          scale: .9,
+          alignment: Alignment.centerLeft,
+          child: AppFlowyEditor(
+            editorState: editorState,
+            editorStyle: styleCustomizer.style(),
+            editable: false,
+            shrinkWrap: true,
+            blockComponentBuilders: getEditorBuilderMap(
+              context: context,
               editorState: editorState,
-              editorStyle: styleCustomizer.style(),
+              styleCustomizer: styleCustomizer,
               editable: false,
-              shrinkWrap: true,
-              blockComponentBuilders: getEditorBuilderMap(
-                context: context,
-                editorState: editorState,
-                styleCustomizer: styleCustomizer,
-                editable: false,
-              ),
             ),
           ),
         );
diff --git a/frontend/appflowy_flutter/packages/appflowy_result/lib/src/async_result.dart b/frontend/appflowy_flutter/packages/appflowy_result/lib/src/async_result.dart
index e8396d8019..94cd9a68a6 100644
--- a/frontend/appflowy_flutter/packages/appflowy_result/lib/src/async_result.dart
+++ b/frontend/appflowy_flutter/packages/appflowy_result/lib/src/async_result.dart
@@ -34,8 +34,4 @@ extension FlowyAsyncResultExtension<S, F extends Object>
   FlowyAsyncResult<S, F> onFailure(void Function(F failure) onFailure) {
     return then((result) => result..onFailure(onFailure));
   }
-
-  FlowyAsyncResult<S, F> onSuccess(void Function(S success) onSuccess) {
-    return then((result) => result..onSuccess(onSuccess));
-  }
 }