fix

src/app.module.ts

@@ -17,6 +17,7 @@ import { ProfileFieldsModule } from './profile-fields';
 import { ConnectionRequestsModule } from './connection-requests';
 import { MessagesModule } from './messages';
 import { CmsModule } from './cms';
+import { NotificationsModule } from './notifications';
 import { AppController } from './app.controller';
 import { AppService } from './app.service';
 
@@ -57,6 +58,7 @@ import { AppService } from './app.service';
     ConnectionRequestsModule,
     MessagesModule,
     CmsModule,
+    NotificationsModule,
   ],
   controllers: [AppController],
   providers: [