diff --git a/src/app/api/auth/login/route.ts b/src/app/api/auth/login/route.ts
index d628f81..4ae9f5f 100644
--- a/src/app/api/auth/login/route.ts
+++ b/src/app/api/auth/login/route.ts
@@ -21,7 +21,7 @@ export async function POST(request: Request) {
       if (error instanceof AppError) {
         return NextResponse.json(
           {
-            error: AppError,
+            error,
           },
           { status: 401 }
         );
diff --git a/src/app/api/auth/register/route.ts b/src/app/api/auth/register/route.ts
index 7561fe3..d4f10a9 100644
--- a/src/app/api/auth/register/route.ts
+++ b/src/app/api/auth/register/route.ts
@@ -25,7 +25,7 @@ export async function POST(request: Request) {
             : 500;
         return NextResponse.json(
           {
-            error: AppError,
+            error,
           },
           { status }
         );
diff --git a/src/app/page.tsx b/src/app/page.tsx
index 04e8138..d9404cf 100644
--- a/src/app/page.tsx
+++ b/src/app/page.tsx
@@ -27,10 +27,11 @@ async function HomePage() {
     return <HomeContent data={data} refreshHome={refreshHome} />;
   } catch (error) {
     // Si l'erreur indique une configuration manquante, rediriger vers les préférences
-    if (error instanceof AppError && error.code === ERROR_CODES.KOMGA.MISSING_CONFIG) {
-      redirect("/settings");
-    }
+
     if (error instanceof AppError) {
+      if (error.code === ERROR_CODES.KOMGA.MISSING_CONFIG) {
+        redirect("/settings");
+      }
       return (
         <main className="container mx-auto px-4 py-8">
           <ErrorMessage errorCode={error.code} />
diff --git a/src/components/auth/LoginForm.tsx b/src/components/auth/LoginForm.tsx
index a020a42..5d106d6 100644
--- a/src/components/auth/LoginForm.tsx
+++ b/src/components/auth/LoginForm.tsx
@@ -90,7 +90,7 @@ export function LoginForm({ from }: LoginFormProps) {
           {t("login.form.remember")}
         </label>
       </div>
-      {error && error instanceof AppError && <ErrorMessage errorCode={error.code} variant="form" />}
+      {error && <ErrorMessage errorCode={error.code} variant="form" />}
       <button
         type="submit"
         disabled={isLoading}
diff --git a/src/components/auth/RegisterForm.tsx b/src/components/auth/RegisterForm.tsx
index f083eeb..694bce1 100644
--- a/src/components/auth/RegisterForm.tsx
+++ b/src/components/auth/RegisterForm.tsx
@@ -101,7 +101,7 @@ export function RegisterForm({ from }: RegisterFormProps) {
           className="flex h-10 w-full rounded-md border border-input bg-background px-3 py-2 text-sm ring-offset-background file:border-0 file:bg-transparent file:text-sm file:font-medium placeholder:text-muted-foreground focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2 disabled:cursor-not-allowed disabled:opacity-50"
         />
       </div>
-      {error && error instanceof AppError && <ErrorMessage errorCode={error.code} variant="form" />}
+      {error && <ErrorMessage errorCode={error.code} variant="form" />}
       <button
         type="submit"
         disabled={isLoading}