diff --git a/srcs/requirements/nestjs/api_back/src/chat/chat.service.ts b/srcs/requirements/nestjs/api_back/src/chat/chat.service.ts
index a97d9004..8313583b 100644
--- a/srcs/requirements/nestjs/api_back/src/chat/chat.service.ts
+++ b/srcs/requirements/nestjs/api_back/src/chat/chat.service.ts
@@ -372,11 +372,14 @@ export class ChatService {
 	async getListBlockUser(username: string): Promise<string[]>
 	{
 		printCaller("-- in ");
-
+		let users: string[] = [];
 		let user = await this.getUserByName(username);
-		let friends_users = await this.friendshipService.findAllBlockedFriends(user.id);
-		let users = friends_users.map(user => user.receiverUsername);
-
+		console.log("USERNAME CHAT SRVICE " + username);
+		let friends_users;
+		if (user)
+			friends_users = await this.friendshipService.findAllBlockedFriends(user.id);
+		if (friends_users)
+			users = friends_users.map(user => user.receiverUsername);
 		printCaller("-- out ");
 		return users;
 	}