diff --git a/app/api/candidature/route.ts b/app/api/candidature/route.ts
index e57e0c9..bbf0797 100644
--- a/app/api/candidature/route.ts
+++ b/app/api/candidature/route.ts
@@ -100,9 +100,9 @@ export async function POST(request: Request) {
       .insert(candidature as never);
 
     if (insertError) {
-      console.error("Erreur insertion candidature:", insertError);
+      console.error("Erreur insertion candidature:", JSON.stringify(insertError));
       return NextResponse.json(
-        { error: "Erreur lors de l'enregistrement. Vérifiez que la base de données est configurée." },
+        { error: `Erreur base de données : ${insertError.message}` },
         { status: 500 }
       );
     }
diff --git a/lib/supabase/server.ts b/lib/supabase/server.ts
index e61c15b..0c4fdbe 100644
--- a/lib/supabase/server.ts
+++ b/lib/supabase/server.ts
@@ -70,6 +70,12 @@ export const createClient = async () => {
 export const createAdminClient = () => {
   return createSupabaseClient<Database>(
     process.env.NEXT_PUBLIC_SUPABASE_URL!,
-    process.env.SUPABASE_SERVICE_ROLE_KEY!
+    process.env.SUPABASE_SERVICE_ROLE_KEY!,
+    {
+      auth: {
+        autoRefreshToken: false,
+        persistSession: false,
+      },
+    }
   );
 };