fixed bug

src/socket/socket.gateway.ts

@@ -9,7 +9,6 @@ import { SendMessageDto } from './dto/sendMessage.dto';
 import { SocketService } from './socket.service';
 
 @WebSocketGateway({
-  namespace: '/notification',
   cors: {
     origin: '*',
   },
@@ -57,10 +56,12 @@ export class SocketGateway implements OnGatewayConnection {
   }
 
   getConnectedClients(clientsId: string[]): Socket[] {
-    const connectedClients = this.server.sockets.sockets;
+    const socketsMap = this.server?.sockets?.sockets;
+    if (!socketsMap) return [];
+
     const clients: Socket[] = [];
 
-    for (const client of connectedClients.values()) {
+    for (const client of socketsMap.values()) {
       if (clientsId.includes(client.handshake.auth.token)) {
         clients.push(client);
       }