Hi
@REcoNn and warm welcome
👋Do you have specific error?
Have you tried downloading WhatsApp businesses and see if it works on there?
Also have you enabled all necessary permissions for WhatsApp?
You can go to WhatsApp settings > chats > and toggle on media visibility.
Clear cache from settings > apps > WhatsApp > storage > clear cache
And force stop the app.
Also make sure your app is on the latest version.