diff --git a/components/MessageNotifications.tsx b/components/MessageNotifications.tsx
index 9e34888..03cb6e5 100644
--- a/components/MessageNotifications.tsx
+++ b/components/MessageNotifications.tsx
@@ -94,7 +94,7 @@ export default function MessageNotifications() {
 
   // Initialiser les IDs des messages au premier chargement
   useEffect(() => {
-    if (conversations && !initializedRef.current) {
+    if (conversations && Array.isArray(conversations) && !initializedRef.current) {
       conversations.forEach((conversation) => {
         if (conversation.lastMessage) {
           lastMessageIdsRef.current.set(conversation.id, conversation.lastMessage.id);
@@ -106,7 +106,7 @@ export default function MessageNotifications() {
 
   // Détecter les nouveaux messages
   useEffect(() => {
-    if (!conversations || !currentUser || !initializedRef.current) return;
+    if (!conversations || !Array.isArray(conversations) || !currentUser || !initializedRef.current) return;
 
     conversations.forEach((conversation) => {
       if (!conversation.lastMessage) return;
diff --git a/prisma/dev.db b/prisma/dev.db
index 795f252..34c6170 100644
Binary files a/prisma/dev.db and b/prisma/dev.db differ