diff --git a/lib/pages/dynamics/widgets/additional_panel.dart b/lib/pages/dynamics/widgets/additional_panel.dart
index 48d70bd9..97798527 100644
--- a/lib/pages/dynamics/widgets/additional_panel.dart
+++ b/lib/pages/dynamics/widgets/additional_panel.dart
@@ -216,7 +216,6 @@ Widget addWidget(
             ),
           );
         }
-        return const SizedBox.shrink();
 
       case 'ADDITIONAL_TYPE_UPOWER_LOTTERY':
         final content = additional.upowerLottery!;
@@ -397,7 +396,6 @@ Widget addWidget(
             }).toList(),
           );
         }
-        return const SizedBox.shrink();
 
       case 'ADDITIONAL_TYPE_VOTE':
         final vote = additional.vote!;
diff --git a/lib/utils/login_utils.dart b/lib/utils/login_utils.dart
index 6c1a31de..153c01e3 100644
--- a/lib/utils/login_utils.dart
+++ b/lib/utils/login_utils.dart
@@ -31,7 +31,7 @@ abstract class LoginUtils {
       return null;
     }
     final cookies = (account ?? Accounts.main).cookieJar.toList();
-    final webManager = web.CookieManager();
+    final webManager = web.CookieManager.instance();
     return Future.wait(
       cookies.map(
         (cookie) => webManager.setCookie(
@@ -117,7 +117,7 @@ abstract class LoginUtils {
     GrpcReq.updateHeaders(null);
 
     await Future.wait([
-      if (!Platform.isWindows) web.CookieManager().deleteAllCookies(),
+      if (!Platform.isWindows) web.CookieManager.instance().deleteAllCookies(),
       GStorage.userInfo.delete('userInfoCache'),
     ]);