Hello to all my friends, I am trying to record a message from my laptop and sending this message to a fm Whatsapp friend of mine? But when I send it to my friend, he doesn't listens the message correctly. Could this be a problem with the app I'm using? because It's an unofficial app.

you can check app here https://whatsappgb.download/fmwhatsapp-apk/

and I have also updated my drivers give some suggestion?