diff --git a/frontend/src/components/AppRouteGuard.tsx b/frontend/src/components/AppRouteGuard.tsx
index 1a2327d..035c186 100644
--- a/frontend/src/components/AppRouteGuard.tsx
+++ b/frontend/src/components/AppRouteGuard.tsx
@@ -1,4 +1,3 @@
-import { Navigate } from 'react-router-dom';
 import { isAppEnabled } from '../utils/appFilter';
 
 interface AppRouteGuardProps {
diff --git a/frontend/src/components/MagicCodeInput/MagicCodeInput.tsx b/frontend/src/components/MagicCodeInput/MagicCodeInput.tsx
index 55e22d3..f0842b9 100644
--- a/frontend/src/components/MagicCodeInput/MagicCodeInput.tsx
+++ b/frontend/src/components/MagicCodeInput/MagicCodeInput.tsx
@@ -33,7 +33,7 @@ export function MagicCodeInput({ onApplied, onClose }: MagicCodeInputProps) {
 
     try {
       setLoading(true);
-      const appliedSettings = await applyMagicCode(normalizedCode);
+      await applyMagicCode(normalizedCode);
       setSuccess(true);
       setCode('');
       
diff --git a/frontend/src/services/timeLimitService.ts b/frontend/src/services/timeLimitService.ts
index 42d712e..0a72dc3 100644
--- a/frontend/src/services/timeLimitService.ts
+++ b/frontend/src/services/timeLimitService.ts
@@ -89,7 +89,7 @@ export async function getDailyLimit(): Promise<number> {
   try {
     const { getMagicCodeSettings } = await import('./magicCodeService');
     const magicCodeSettings = getMagicCodeSettings();
-    if (magicCodeSettings?.dailyTimeLimit !== null && magicCodeSettings.dailyTimeLimit !== undefined) {
+    if (magicCodeSettings && magicCodeSettings.dailyTimeLimit !== null && magicCodeSettings.dailyTimeLimit !== undefined) {
       return magicCodeSettings.dailyTimeLimit;
     }
   } catch (error) {
@@ -143,7 +143,7 @@ export function getDailyLimitSync(): number {
     const stored = localStorage.getItem(MAGIC_CODE_SETTINGS_KEY);
     if (stored) {
       const magicCodeSettings = JSON.parse(stored);
-      if (magicCodeSettings?.dailyTimeLimit !== null && magicCodeSettings.dailyTimeLimit !== undefined) {
+      if (magicCodeSettings && magicCodeSettings.dailyTimeLimit !== null && magicCodeSettings.dailyTimeLimit !== undefined) {
         return magicCodeSettings.dailyTimeLimit;
       }
     }